diff --git a/ext/intl/dateformat/dateformat.stub.php b/ext/intl/dateformat/dateformat.stub.php
index 3e5f178491bda..62150036f926e 100644
--- a/ext/intl/dateformat/dateformat.stub.php
+++ b/ext/intl/dateformat/dateformat.stub.php
@@ -50,6 +50,11 @@ class IntlDateFormatter
      * @cvalue UDAT_SHORT_RELATIVE
      */
     public const RELATIVE_SHORT = UNKNOWN;
+    /**
+     * @var int
+     * @cvalue UDAT_PATTERN
+     */
+    public const PATTERN = UNKNOWN;
 
     /**
      * @var int
diff --git a/ext/intl/dateformat/dateformat_arginfo.h b/ext/intl/dateformat/dateformat_arginfo.h
index 6391c5839e09f..fd14b3af72827 100644
--- a/ext/intl/dateformat/dateformat_arginfo.h
+++ b/ext/intl/dateformat/dateformat_arginfo.h
@@ -1,5 +1,5 @@
 /* This is a generated file, edit the .stub.php file instead.
- * Stub hash: c3aabab98e4864276f6cb0afb2e3fefad0386481 */
+ * Stub hash: c7bec57da82aab1f4470df0f2b725523885a58c2 */
 
 ZEND_BEGIN_ARG_INFO_EX(arginfo_class_IntlDateFormatter___construct, 0, 0, 1)
 	ZEND_ARG_TYPE_INFO(0, locale, IS_STRING, 1)
@@ -197,6 +197,12 @@ static zend_class_entry *register_class_IntlDateFormatter(void)
 	zend_declare_class_constant_ex(class_entry, const_RELATIVE_SHORT_name, &const_RELATIVE_SHORT_value, ZEND_ACC_PUBLIC, NULL);
 	zend_string_release(const_RELATIVE_SHORT_name);
 
+	zval const_PATTERN_value;
+	ZVAL_LONG(&const_PATTERN_value, UDAT_PATTERN);
+	zend_string *const_PATTERN_name = zend_string_init_interned("PATTERN", sizeof("PATTERN") - 1, 1);
+	zend_declare_class_constant_ex(class_entry, const_PATTERN_name, &const_PATTERN_value, ZEND_ACC_PUBLIC, NULL);
+	zend_string_release(const_PATTERN_name);
+
 	zval const_GREGORIAN_value;
 	ZVAL_LONG(&const_GREGORIAN_value, UCAL_GREGORIAN);
 	zend_string *const_GREGORIAN_name = zend_string_init_interned("GREGORIAN", sizeof("GREGORIAN") - 1, 1);
diff --git a/ext/intl/tests/gh12243.phpt b/ext/intl/tests/gh12243.phpt
index 80fb41032f343..68bbc47f77bed 100644
--- a/ext/intl/tests/gh12243.phpt
+++ b/ext/intl/tests/gh12243.phpt
@@ -7,12 +7,11 @@ intl
 <?php
 
 $datetime = new \DateTime('2017-05-12 23:11:00 GMT+2');
-static $UDAT_PATTERN = -2;
 
 try {
     new IntlDateFormatter(
 	    locale: 'en',
-	    dateType: $UDAT_PATTERN,
+	    dateType: IntlDateFormatter::PATTERN,
 	    timeType: 0,
 	    timezone: $datetime->getTimezone(),
     );