diff --git a/dtable.c b/dtable.c
index a6f16417..a2cdc08c 100644
--- a/dtable.c
+++ b/dtable.c
@@ -677,7 +677,7 @@ LEGACY void update_dispatch_table_for_class(Class cls)
 	objc_update_dtable_for_class(cls);
 }
 
-void objc_resolve_class(Class);
+BOOL objc_resolve_class(Class);
 
 __attribute__((unused)) static void objc_release_object_lock(id *x)
 {
diff --git a/runtime.c b/runtime.c
index be03c3f7..e6049441 100644
--- a/runtime.c
+++ b/runtime.c
@@ -22,7 +22,7 @@
 #define CHECK_ARG(arg) if (0 == arg) { return 0; }
 
 static inline void safe_remove_from_subclass_list(Class cls);
-PRIVATE void objc_resolve_class(Class);
+PRIVATE BOOL objc_resolve_class(Class);
 void objc_send_initialize(id object);
 
 /**