diff --git a/gtk/gtksearchengine.c b/gtk/gtksearchengine.c
index 8a92a220c1..f11ce73264 100644
--- a/gtk/gtksearchengine.c
+++ b/gtk/gtksearchengine.c
@@ -350,9 +350,9 @@ static void
 connect_engine_signals (GtkSearchEngine *engine,
                         gpointer         data)
 {
-  g_signal_connect (engine, "hits-added", G_CALLBACK (hits_added), data);
-  g_signal_connect (engine, "finished", G_CALLBACK (finished), data);
-  g_signal_connect (engine, "error", G_CALLBACK (error), data);
+  g_signal_connect_object (engine, "hits-added", G_CALLBACK (hits_added), data, 0);
+  g_signal_connect_object (engine, "finished", G_CALLBACK (finished), data, 0);
+  g_signal_connect_object (engine, "error", G_CALLBACK (error), data, 0);
 }
 
 GtkSearchEngine *