diff --git a/Zend/zend_API.h b/Zend/zend_API.h
index 3810566a655..b9fdb76cc49 100644
--- a/Zend/zend_API.h
+++ b/Zend/zend_API.h
@@ -211,8 +211,8 @@ typedef struct _zend_fcall_info_cache {
 		class_container.__unset = NULL;							\
 		class_container.__isset = NULL;							\
 		class_container.__debugInfo = NULL;						\
-		class_container.serialize = NULL;						\
-		class_container.unserialize = NULL;						\
+		class_container.serialize_func = NULL;					\
+		class_container.unserialize_func = NULL;				\
 		class_container.parent = NULL;							\
 		class_container.num_interfaces = 0;						\
 		class_container.traits = NULL;							\