diff --git a/clutter/clutter/clutter-private.h b/clutter/clutter/clutter-private.h
index b7e06109f..6afbf5eec 100644
--- a/clutter/clutter/clutter-private.h
+++ b/clutter/clutter/clutter-private.h
@@ -158,8 +158,7 @@ gboolean _clutter_threads_dispatch      (gpointer data);
 void     _clutter_threads_dispatch_free (gpointer data);
 
 ClutterContext *        _clutter_context_get_default                    (void);
-void                    _clutter_context_lock                           (void);
-void                    _clutter_context_unlock                         (void);
+
 CLUTTER_EXPORT
 gboolean                _clutter_context_is_initialized                 (void);
 gboolean                _clutter_context_get_show_fps                   (void);