diff --git a/gcc/objc/objc.h b/gcc/objc/objc.h
index 7e18aca1808..4bb9da361de 100644
--- a/gcc/objc/objc.h
+++ b/gcc/objc/objc.h
@@ -117,6 +117,7 @@ struct objc_class {
 
 #ifndef __OBJC__
 typedef struct objc_protocol {
+  struct objc_class* class_pointer;
   char *protocol_name;
   struct objc_protocol_list *protocol_list;
   struct objc_method_description_list *instance_methods, *class_methods;