diff --git a/Zend/zend_API.h b/Zend/zend_API.h
index 12544e25598..32f40b2b776 100644
--- a/Zend/zend_API.h
+++ b/Zend/zend_API.h
@@ -195,6 +195,10 @@ typedef struct _zend_fcall_info_cache {
 		class_container.unserialize = NULL;						\
 		class_container.parent = NULL;							\
 		class_container.num_interfaces = 0;						\
+		class_container.traits = NULL;							\
+		class_container.num_traits = 0;							\
+		class_container.trait_aliases = NULL;					\
+		class_container.trait_precedences = NULL;				\
 		class_container.interfaces = NULL;						\
 		class_container.get_iterator = NULL;					\
 		class_container.iterator_funcs.funcs = NULL;			\