diff --git a/src/main/java/fr/adrienbrault/idea/symfony2plugin/config/yaml/YamlElementPatternHelper.java b/src/main/java/fr/adrienbrault/idea/symfony2plugin/config/yaml/YamlElementPatternHelper.java
index 7c459172d..4420e190d 100644
--- a/src/main/java/fr/adrienbrault/idea/symfony2plugin/config/yaml/YamlElementPatternHelper.java
+++ b/src/main/java/fr/adrienbrault/idea/symfony2plugin/config/yaml/YamlElementPatternHelper.java
@@ -679,6 +679,22 @@ public static PsiElementPattern.Capture<PsiElement> getTagsAsSequencePattern() {
         );
     }
 
+    /**
+     * services:
+     *     _defaults:
+     *         bind:
+     *             $fo<caret>obar: '@foobar'
+     */
+    public static PsiElementPattern.Capture<PsiElement> getBindArgumentPattern() {
+        return PlatformPatterns.psiElement().withParent(
+                PlatformPatterns.psiElement(YAMLKeyValue.class).withParent(
+                        PlatformPatterns.psiElement(YAMLMapping.class).withParent(
+                                PlatformPatterns.psiElement(YAMLKeyValue.class).withName("bind")
+                        )
+                )
+        );
+    }
+
     /**
      * !tagged twig.extension
      */
diff --git a/src/main/java/fr/adrienbrault/idea/symfony2plugin/config/yaml/YamlGoToDeclarationHandler.java b/src/main/java/fr/adrienbrault/idea/symfony2plugin/config/yaml/YamlGoToDeclarationHandler.java
index e2804c730..f454cd1a2 100644
--- a/src/main/java/fr/adrienbrault/idea/symfony2plugin/config/yaml/YamlGoToDeclarationHandler.java
+++ b/src/main/java/fr/adrienbrault/idea/symfony2plugin/config/yaml/YamlGoToDeclarationHandler.java
@@ -31,10 +31,7 @@
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.jetbrains.yaml.YAMLTokenTypes;
-import org.jetbrains.yaml.psi.YAMLKeyValue;
-import org.jetbrains.yaml.psi.YAMLMapping;
-import org.jetbrains.yaml.psi.YAMLScalar;
-import org.jetbrains.yaml.psi.YAMLSequenceItem;
+import org.jetbrains.yaml.psi.*;
 
 import java.util.*;
 
@@ -92,8 +89,16 @@ public PsiElement[] getGotoDeclarationTargets(PsiElement psiElement, int i, Edit
         if (elementType == YAMLTokenTypes.SCALAR_KEY) {
             String psiText = PsiElementUtils.getText(psiElement);
 
-            if(psiText.startsWith("$")) {
-                targets.addAll(namedArgumentGoto(psiElement)) ;
+            if (psiText.startsWith("$")) {
+                targets.addAll(namedArgumentGoto(psiElement));
+
+                // services:
+                //      _defaults:
+                //          bind:
+                //              $fo<caret>obar: '@foobar'
+                if (YamlElementPatternHelper.getBindArgumentPattern().accepts(psiElement)) {
+                    targets.addAll(namedDefaultBindArgumentGoto(psiElement, psiText));
+                }
             }
         }
 
@@ -176,7 +181,29 @@ public PsiElement[] getGotoDeclarationTargets(PsiElement psiElement, int i, Edit
         return targets.toArray(new PsiElement[targets.size()]);
     }
 
-    private Collection<? extends PsiElement> namedArgumentGoto(PsiElement psiElement) {
+    private Collection<? extends PsiElement> namedDefaultBindArgumentGoto(@NotNull PsiElement psiElement, @NotNull String parameterName) {
+        Collection<PsiElement> psiElements = new HashSet<>();
+
+        PsiFile containingFile = psiElement.getContainingFile();
+        if (containingFile instanceof YAMLFile) {
+            for (PhpClass phpClass : YamlHelper.getPhpClassesInYamlFile((YAMLFile) containingFile, new ContainerCollectionResolver.LazyServiceCollector(psiElement.getProject()))) {
+                Method constructor = phpClass.getConstructor();
+                if (constructor == null) {
+                    continue;
+                }
+
+                for (Parameter parameter : constructor.getParameters()) {
+                    if (parameter.getName().equals(parameterName.substring(1))) {
+                        psiElements.add(parameter);
+                    }
+                }
+            }
+        }
+
+        return psiElements;
+    }
+
+    private Collection<? extends PsiElement> namedArgumentGoto(@NotNull PsiElement psiElement) {
         Collection<PsiElement> psiElements = new HashSet<>();
 
         Parameter yamlNamedArgument = ServiceContainerUtil.getYamlNamedArgument(psiElement, new ContainerCollectionResolver.LazyServiceCollector(psiElement.getProject()));
diff --git a/src/main/java/fr/adrienbrault/idea/symfony2plugin/dic/container/util/ServiceContainerUtil.java b/src/main/java/fr/adrienbrault/idea/symfony2plugin/dic/container/util/ServiceContainerUtil.java
index 7f947f405..0098f6a83 100644
--- a/src/main/java/fr/adrienbrault/idea/symfony2plugin/dic/container/util/ServiceContainerUtil.java
+++ b/src/main/java/fr/adrienbrault/idea/symfony2plugin/dic/container/util/ServiceContainerUtil.java
@@ -410,7 +410,7 @@ public static Parameter getYamlNamedArgument(@NotNull PsiElement psiElement, @No
      *  arguments: ~
      */
     @Nullable
-    private static String getServiceClassFromServiceMapping(@NotNull YAMLMapping yamlMapping) {
+    public static String getServiceClassFromServiceMapping(@NotNull YAMLMapping yamlMapping) {
         YAMLKeyValue classKeyValue = yamlMapping.getKeyValueByKey("class");
 
         // Symfony 3.3: "class" is optional; use service id for class
diff --git a/src/main/java/fr/adrienbrault/idea/symfony2plugin/util/yaml/YamlHelper.java b/src/main/java/fr/adrienbrault/idea/symfony2plugin/util/yaml/YamlHelper.java
index 61864fed9..ba6c171c0 100644
--- a/src/main/java/fr/adrienbrault/idea/symfony2plugin/util/yaml/YamlHelper.java
+++ b/src/main/java/fr/adrienbrault/idea/symfony2plugin/util/yaml/YamlHelper.java
@@ -18,10 +18,15 @@
 import com.intellij.util.Processor;
 import com.intellij.util.containers.ContainerUtil;
 import com.jetbrains.php.lang.psi.elements.Parameter;
+import com.jetbrains.php.lang.psi.elements.PhpClass;
 import com.jetbrains.php.refactoring.PhpNameUtil;
 import fr.adrienbrault.idea.symfony2plugin.dic.ParameterResolverConsumer;
+import fr.adrienbrault.idea.symfony2plugin.dic.container.util.ServiceContainerUtil;
 import fr.adrienbrault.idea.symfony2plugin.dic.tags.yaml.StaticAttributeResolver;
+import fr.adrienbrault.idea.symfony2plugin.stubs.ContainerCollectionResolver;
+import fr.adrienbrault.idea.symfony2plugin.util.PhpElementsUtil;
 import fr.adrienbrault.idea.symfony2plugin.util.PsiElementUtils;
+import fr.adrienbrault.idea.symfony2plugin.util.dict.ServiceUtil;
 import fr.adrienbrault.idea.symfony2plugin.util.yaml.visitor.ParameterVisitor;
 import fr.adrienbrault.idea.symfony2plugin.util.yaml.visitor.YamlServiceTag;
 import fr.adrienbrault.idea.symfony2plugin.util.yaml.visitor.YamlTagVisitor;
@@ -34,6 +39,7 @@
 import org.jetbrains.yaml.YAMLUtil;
 import org.jetbrains.yaml.psi.*;
 import org.jetbrains.yaml.psi.impl.YAMLHashImpl;
+import org.jetbrains.yaml.psi.impl.YAMLPlainTextImpl;
 
 import java.util.*;
 
@@ -1168,4 +1174,33 @@ public boolean accepts(@NotNull PsiElement psiElement, ProcessingContext process
             return psiElement.getNextSibling() instanceof YAMLMapping;
         }
     }
+
+    @NotNull
+    public static Collection<PhpClass> getPhpClassesInYamlFile(@NotNull YAMLFile yamlFile, @NotNull ContainerCollectionResolver.LazyServiceCollector lazyServiceCollector) {
+        Collection<PhpClass> phpClasses = new HashSet<>();
+
+        for (YAMLKeyValue keyValue : YamlHelper.getQualifiedKeyValuesInFile(yamlFile, "services")) {
+            YAMLValue value = keyValue.getValue();
+            if (value instanceof YAMLMapping) {
+                // foo.bar:
+                //    classes: ...
+                String serviceId = ServiceContainerUtil.getServiceClassFromServiceMapping((YAMLMapping) value);
+                if (StringUtils.isNotBlank(serviceId)) {
+                    PhpClass serviceClass = ServiceUtil.getResolvedClassDefinition(yamlFile.getProject(), serviceId, lazyServiceCollector);
+                    if (serviceClass != null) {
+                        phpClasses.add(serviceClass);
+                    }
+                }
+            } else if(value instanceof YAMLPlainTextImpl) {
+                // Foo\Bar: ~
+                String text = keyValue.getKeyText();
+
+                if (StringUtils.isNotBlank(text) && YamlHelper.isClassServiceId(text)) {
+                    phpClasses.addAll(PhpElementsUtil.getClassesInterface(yamlFile.getProject(), text));
+                }
+            }
+        }
+
+        return phpClasses;
+    }
 }
diff --git a/src/test/java/fr/adrienbrault/idea/symfony2plugin/tests/config/yaml/YamlGoToDeclarationHandlerTest.java b/src/test/java/fr/adrienbrault/idea/symfony2plugin/tests/config/yaml/YamlGoToDeclarationHandlerTest.java
index 91303165d..921cb5da6 100644
--- a/src/test/java/fr/adrienbrault/idea/symfony2plugin/tests/config/yaml/YamlGoToDeclarationHandlerTest.java
+++ b/src/test/java/fr/adrienbrault/idea/symfony2plugin/tests/config/yaml/YamlGoToDeclarationHandlerTest.java
@@ -237,6 +237,27 @@ public void testNamedArgumentsNavigationForService() {
         );
     }
 
+    public void testNamedArgumentsNavigationForDefaultBinding() {
+        assertNavigationMatch("services.yml", "" +
+                        "services:\n" +
+                        "   _defaults:\n" +
+                        "       bind:\n" +
+                        "           $<caret>i: ~\n"+
+                        "   Foo\\Bar: ~" +
+                PlatformPatterns.psiElement(Parameter.class)
+        );
+
+        assertNavigationMatch("services.yml", "" +
+                "services:\n" +
+                "   _defaults:\n" +
+                "       bind:\n" +
+                "           $<caret>i: ~\n"+
+                "   foobar:\n" +
+                "       class: Foo\\Bar\n" +
+                PlatformPatterns.psiElement(Parameter.class)
+        );
+    }
+
     @NotNull
     private PsiElementPattern.Capture<PhpClass> getClassPattern() {
         return PlatformPatterns.psiElement(PhpClass.class);