diff --git a/pom.xml b/pom.xml
index 5605655a0..d77f6ba1b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,222 +1,222 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <modelVersion>4.0.0</modelVersion>
-
-    <parent>
-        <groupId>org.sonatype.oss</groupId>
-        <artifactId>oss-parent</artifactId>
-        <version>7</version>
-    </parent>
-
-    <groupId>com.qdesrame</groupId>
-    <artifactId>openapi-diff</artifactId>
-    <version>1.2.1-SNAPSHOT</version>
-    <packaging>jar</packaging>
-
-    <name>openapi-diff</name>
-    <description>Utility for comparing two OpenAPI specifications.</description>
-    <url>http://maven.apache.org</url>
-
-    <licenses>
-        <license>
-            <name>The Apache Software License, Version 2.0</name>
-            <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
-        </license>
-    </licenses>
-
-    <developers>
-        <developer>
-            <name>qdesrame</name>
-            <email>quen2404@gmail.com</email>
-        </developer>
-    </developers>
-
-    <scm>
-        <connection>scm:git:http://github.com/quen2404/openapi-diff.git</connection>
-        <developerConnection>scm:git:http://github.com/quen2404/openapi-diff.git</developerConnection>
-        <url>https://github.com/quen2404/openapi-diff</url>
-        <tag>HEAD</tag>
-    </scm>
-
-    <distributionManagement>
-        <snapshotRepository>
-            <id>sonatype-nexus-snapshots</id>
-            <name>Sonatype Nexus snapshot repository</name>
-            <url>https://oss.sonatype.org/content/repositories/snapshots</url>
-        </snapshotRepository>
-        <repository>
-            <id>sonatype-nexus-staging</id>
-            <name>Sonatype Nexus release repository</name>
-            <url>https://oss.sonatype.org/service/local/staging/deploy/maven2/</url>
-        </repository>
-    </distributionManagement>
-
-    <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <project.scm.id>github</project.scm.id>
-    </properties>
-
-    <dependencies>
-        <dependency>
-            <groupId>io.swagger.parser.v3</groupId>
-            <artifactId>swagger-parser-v3</artifactId>
-            <version>2.0.0-rc3</version>
-        </dependency>
-        <dependency>
-            <groupId>com.j2html</groupId>
-            <artifactId>j2html</artifactId>
-            <version>1.2.0</version>
-        </dependency>
-        <dependency>
-            <groupId>com.alibaba</groupId>
-            <artifactId>fastjson</artifactId>
-            <version>1.2.7</version>
-        </dependency>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>4.8.2</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.commons</groupId>
-            <artifactId>commons-collections4</artifactId>
-            <version>4.0</version>
-        </dependency>
-        <dependency>
-            <groupId>commons-cli</groupId>
-            <artifactId>commons-cli</artifactId>
-            <version>1.4</version>
-        </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-api</artifactId>
-            <version>1.7.25</version>
-        </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-log4j12</artifactId>
-            <version>1.7.25</version>
-        </dependency>
-        <dependency>
-            <groupId>commons-httpclient</groupId>
-            <artifactId>commons-httpclient</artifactId>
-            <version>3.1</version>
-        </dependency>
-        <dependency>
-            <groupId>org.projectlombok</groupId>
-            <artifactId>lombok</artifactId>
-            <version>1.16.18</version>
-        </dependency>
-    </dependencies>
-
-    <profiles>
-        <profile>
-            <id>release-sign-artifacts</id>
-            <activation>
-                <property>
-                    <name>performRelease</name>
-                    <value>true</value>
-                </property>
-            </activation>
-            <build>
-                <plugins>
-                    <plugin>
-                        <groupId>org.apache.maven.plugins</groupId>
-                        <artifactId>maven-gpg-plugin</artifactId>
-                        <version>1.6</version>
-                        <configuration>
-                            <configuration>
-                                <gpgArguments>
-                                    <arg>--pinentry-mode</arg>
-                                    <arg>loopback</arg>
-                                </gpgArguments>
-                            </configuration>
-                        </configuration>
-                        <executions>
-                            <execution>
-                                <id>sign-artifacts</id>
-                                <phase>verify</phase>
-                                <goals>
-                                    <goal>sign</goal>
-                                </goals>
-                            </execution>
-                        </executions>
-                    </plugin>
-                </plugins>
-            </build>
-        </profile>
-    </profiles>
-    <build>
-        <plugins>
-            <plugin>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <configuration>
-                    <source>1.8</source>
-                    <target>1.8</target>
-                    <encoding>UTF-8</encoding>
-                </configuration>
-                <version>3.2</version>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-source-plugin</artifactId>
-                <version>3.0.1</version>
-                <executions>
-                    <execution>
-                        <phase>package</phase>
-                        <goals>
-                            <goal>jar-no-fork</goal>
-                        </goals>
-                    </execution>
-                </executions>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-release-plugin</artifactId>
-                <version>2.5.3</version>
-                <configuration>
-                    <!--<arguments>-Dgpg.passphrase=${gpg.passphrase}</arguments>-->
-                    <tagNameFormat>@{project.version}</tagNameFormat>
-                    <autoVersionSubmodules>true</autoVersionSubmodules>
-                    <releaseProfiles>releases</releaseProfiles>
-                    <!--<localCheckout>true</localCheckout>-->
-                    <!--<pushChanges>false</pushChanges>-->
-                </configuration>
-            </plugin>
-            <!-- Javadoc -->
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-javadoc-plugin</artifactId>
-                <version>3.0.0</version>
-                <configuration>
-                    <quiet>true</quiet>
-                    <nonavbar>true</nonavbar>
-                    <notree>true</notree>
-                    <nocomment>true</nocomment>
-                    <nohelp>true</nohelp>
-                </configuration>
-                <executions>
-                    <execution>
-                        <id>attach-javadocs</id>
-                        <goals>
-                            <goal>jar</goal>
-                        </goals>
-                    </execution>
-                </executions>
-            </plugin>
-            <plugin>
-                <artifactId>maven-assembly-plugin</artifactId>
-                <configuration>
-                    <archive>
-                        <manifest>
-                            <mainClass>com.qdesrame.openapi.diff.Main</mainClass>
-                        </manifest>
-                    </archive>
-                    <descriptorRefs>
-                        <descriptorRef>jar-with-dependencies</descriptorRef>
-                    </descriptorRefs>
-                </configuration>
-            </plugin>
-        </plugins>
-    </build>
-</project>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>org.sonatype.oss</groupId>
+        <artifactId>oss-parent</artifactId>
+        <version>7</version>
+    </parent>
+
+    <groupId>com.qdesrame</groupId>
+    <artifactId>openapi-diff</artifactId>
+    <version>1.2.1-SNAPSHOT</version>
+    <packaging>jar</packaging>
+
+    <name>openapi-diff</name>
+    <description>Utility for comparing two OpenAPI specifications.</description>
+    <url>http://maven.apache.org</url>
+
+    <licenses>
+        <license>
+            <name>The Apache Software License, Version 2.0</name>
+            <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
+        </license>
+    </licenses>
+
+    <developers>
+        <developer>
+            <name>qdesrame</name>
+            <email>quen2404@gmail.com</email>
+        </developer>
+    </developers>
+
+    <scm>
+        <connection>scm:git:http://github.com/quen2404/openapi-diff.git</connection>
+        <developerConnection>scm:git:http://github.com/quen2404/openapi-diff.git</developerConnection>
+        <url>https://github.com/quen2404/openapi-diff</url>
+        <tag>HEAD</tag>
+    </scm>
+
+    <distributionManagement>
+        <snapshotRepository>
+            <id>sonatype-nexus-snapshots</id>
+            <name>Sonatype Nexus snapshot repository</name>
+            <url>https://oss.sonatype.org/content/repositories/snapshots</url>
+        </snapshotRepository>
+        <repository>
+            <id>sonatype-nexus-staging</id>
+            <name>Sonatype Nexus release repository</name>
+            <url>https://oss.sonatype.org/service/local/staging/deploy/maven2/</url>
+        </repository>
+    </distributionManagement>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.scm.id>github</project.scm.id>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>io.swagger.parser.v3</groupId>
+            <artifactId>swagger-parser-v3</artifactId>
+            <version>2.0.0</version>
+        </dependency>
+        <dependency>
+            <groupId>com.j2html</groupId>
+            <artifactId>j2html</artifactId>
+            <version>1.2.0</version>
+        </dependency>
+        <dependency>
+            <groupId>com.alibaba</groupId>
+            <artifactId>fastjson</artifactId>
+            <version>1.2.7</version>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.8.2</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-collections4</artifactId>
+            <version>4.0</version>
+        </dependency>
+        <dependency>
+            <groupId>commons-cli</groupId>
+            <artifactId>commons-cli</artifactId>
+            <version>1.4</version>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+            <version>1.7.25</version>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-log4j12</artifactId>
+            <version>1.7.25</version>
+        </dependency>
+        <dependency>
+            <groupId>commons-httpclient</groupId>
+            <artifactId>commons-httpclient</artifactId>
+            <version>3.1</version>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>1.16.18</version>
+        </dependency>
+    </dependencies>
+
+    <profiles>
+        <profile>
+            <id>release-sign-artifacts</id>
+            <activation>
+                <property>
+                    <name>performRelease</name>
+                    <value>true</value>
+                </property>
+            </activation>
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-gpg-plugin</artifactId>
+                        <version>1.6</version>
+                        <configuration>
+                            <configuration>
+                                <gpgArguments>
+                                    <arg>--pinentry-mode</arg>
+                                    <arg>loopback</arg>
+                                </gpgArguments>
+                            </configuration>
+                        </configuration>
+                        <executions>
+                            <execution>
+                                <id>sign-artifacts</id>
+                                <phase>verify</phase>
+                                <goals>
+                                    <goal>sign</goal>
+                                </goals>
+                            </execution>
+                        </executions>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
+    </profiles>
+    <build>
+        <plugins>
+            <plugin>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                    <encoding>UTF-8</encoding>
+                </configuration>
+                <version>3.2</version>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-source-plugin</artifactId>
+                <version>3.0.1</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>jar-no-fork</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-release-plugin</artifactId>
+                <version>2.5.3</version>
+                <configuration>
+                    <!--<arguments>-Dgpg.passphrase=${gpg.passphrase}</arguments>-->
+                    <tagNameFormat>@{project.version}</tagNameFormat>
+                    <autoVersionSubmodules>true</autoVersionSubmodules>
+                    <releaseProfiles>releases</releaseProfiles>
+                    <!--<localCheckout>true</localCheckout>-->
+                    <!--<pushChanges>false</pushChanges>-->
+                </configuration>
+            </plugin>
+            <!-- Javadoc -->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-javadoc-plugin</artifactId>
+                <version>3.0.0</version>
+                <configuration>
+                    <quiet>true</quiet>
+                    <nonavbar>true</nonavbar>
+                    <notree>true</notree>
+                    <nocomment>true</nocomment>
+                    <nohelp>true</nohelp>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>attach-javadocs</id>
+                        <goals>
+                            <goal>jar</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <artifactId>maven-assembly-plugin</artifactId>
+                <configuration>
+                    <archive>
+                        <manifest>
+                            <mainClass>com.qdesrame.openapi.diff.Main</mainClass>
+                        </manifest>
+                    </archive>
+                    <descriptorRefs>
+                        <descriptorRef>jar-with-dependencies</descriptorRef>
+                    </descriptorRefs>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+</project>
diff --git a/src/main/java/com/qdesrame/openapi/diff/compare/HeaderDiff.java b/src/main/java/com/qdesrame/openapi/diff/compare/HeaderDiff.java
index 3aea95ff9..f15badf47 100644
--- a/src/main/java/com/qdesrame/openapi/diff/compare/HeaderDiff.java
+++ b/src/main/java/com/qdesrame/openapi/diff/compare/HeaderDiff.java
@@ -39,7 +39,6 @@ protected Optional<ChangedHeader> computeDiff(HashSet<String> refSet, Header lef
         changedHeader.setChangeDescription(!Objects.equals(left.getDescription(), right.getDescription()));
         changedHeader.setChangeRequired(getBooleanDiff(left.getRequired(), right.getRequired()));
         changedHeader.setChangeDeprecated(!Boolean.TRUE.equals(left.getDeprecated()) && Boolean.TRUE.equals(right.getDeprecated()));
-        changedHeader.setChangeAllowEmptyValue(getBooleanDiff(left.getAllowEmptyValue(), right.getAllowEmptyValue()));
         changedHeader.setChangeStyle(!Objects.equals(left.getStyle(), right.getStyle()));
         changedHeader.setChangeExplode(getBooleanDiff(left.getExplode(), right.getExplode()));
         openApiDiff.getSchemaDiff().diff(new HashSet<>(), left.getSchema(), right.getSchema()).ifPresent(changedHeader::setChangedSchema);
diff --git a/src/main/java/com/qdesrame/openapi/diff/model/ChangedHeader.java b/src/main/java/com/qdesrame/openapi/diff/model/ChangedHeader.java
index a79af7800..a8d1124d7 100644
--- a/src/main/java/com/qdesrame/openapi/diff/model/ChangedHeader.java
+++ b/src/main/java/com/qdesrame/openapi/diff/model/ChangedHeader.java
@@ -16,7 +16,6 @@ public class ChangedHeader implements Changed {
     private boolean changeDescription;
     private boolean changeRequired;
     private boolean changeDeprecated;
-    private boolean changeAllowEmptyValue;
     private boolean changeStyle;
     private boolean changeExplode;
     private ChangedSchema changedSchema;
@@ -32,7 +31,6 @@ public boolean isDiff() {
         return changeDescription
                 || changeRequired
                 || changeDeprecated
-                || changeAllowEmptyValue
                 || changeStyle
                 || changeExplode
                 || (changedSchema != null && changedSchema.isDiff())
@@ -42,7 +40,6 @@ public boolean isDiff() {
     @Override
     public boolean isDiffBackwardCompatible() {
         return changeRequired
-                && changeAllowEmptyValue
                 && changeStyle
                 && changeExplode
                 && (changedSchema == null || changedSchema.isDiffBackwardCompatible(false))