diff --git a/gtk/gtksearchenginemodel.c b/gtk/gtksearchenginemodel.c
index f245e1aa21..dae99f2ba3 100644
--- a/gtk/gtksearchenginemodel.c
+++ b/gtk/gtksearchenginemodel.c
@@ -128,7 +128,8 @@ gtk_search_engine_model_start (GtkSearchEngine *engine)
   if (model->query == NULL)
     return;
 
-  model->idle = g_idle_add (do_search, engine);
+  model->idle = gdk_threads_add_idle (do_search, engine);
+  g_source_set_name_by_id (model->idle, "[gtk+] gtk_search_engine_model_start");
 }
 
 static void