diff --git a/ext/opcache/ZendAccelerator.c b/ext/opcache/ZendAccelerator.c
index e5ef090f6e787..91104d2d42026 100644
--- a/ext/opcache/ZendAccelerator.c
+++ b/ext/opcache/ZendAccelerator.c
@@ -2353,9 +2353,9 @@ static zend_class_entry* zend_accel_inheritance_cache_add(zend_class_entry *ce,
 	SHM_UNPROTECT();
 	zend_shared_alloc_lock();
 
-	entry = ce->inheritance_cache;
+	entry = proto->inheritance_cache;
 	while (entry) {
-		entry = zend_accel_inheritance_cache_find(entry, ce, parent, traits_and_interfaces, &needs_autoload);
+		entry = zend_accel_inheritance_cache_find(entry, proto, parent, traits_and_interfaces, &needs_autoload);
 		if (entry) {
 			if (!needs_autoload) {
 				zend_shared_alloc_unlock();