diff --git a/Zend/zend_hash.c b/Zend/zend_hash.c
index 48f2712d0a8..6ec60239ad8 100644
--- a/Zend/zend_hash.c
+++ b/Zend/zend_hash.c
@@ -816,7 +816,7 @@ ZEND_API void zend_hash_merge(HashTable *target, HashTable *source, copy_ctor_fu
 }
 
 
-static int zend_hash_replace_checker_wrapper(HashTable *target, void *source_data, Bucket *p, void *pParam, merge_checker_func_t merge_checker_func)
+static zend_bool zend_hash_replace_checker_wrapper(HashTable *target, void *source_data, Bucket *p, void *pParam, merge_checker_func_t merge_checker_func)
 {
 	zend_hash_key hash_key;
 
diff --git a/Zend/zend_hash.h b/Zend/zend_hash.h
index 29f5d21c099..37a84cb9566 100644
--- a/Zend/zend_hash.h
+++ b/Zend/zend_hash.h
@@ -83,7 +83,7 @@ typedef struct _zend_hash_key {
 } zend_hash_key;
 
 
-typedef int (*merge_checker_func_t)(HashTable *target_ht, void *source_data, zend_hash_key *hash_key, void *pParam);
+typedef zend_bool (*merge_checker_func_t)(HashTable *target_ht, void *source_data, zend_hash_key *hash_key, void *pParam);
 
 typedef Bucket* HashPosition;