diff --git a/gsk/gskrenderer.c b/gsk/gskrenderer.c
index c2c2bf6775..adc504053a 100644
--- a/gsk/gskrenderer.c
+++ b/gsk/gskrenderer.c
@@ -798,7 +798,7 @@ get_renderer_for_display (GdkWindow *window)
   GdkDisplay *display = gdk_window_get_display (window);
   const char *renderer_name;
 
-  renderer_name = g_object_get_data (display, "gsk-renderer");
+  renderer_name = g_object_get_data (G_OBJECT (display), "gsk-renderer");
   return get_renderer_for_name (renderer_name);
 }