diff --git a/tests/visuals/visuals.c b/tests/visuals/visuals.c
index 5b0bc381ce..5dc9530bee 100644
--- a/tests/visuals/visuals.c
+++ b/tests/visuals/visuals.c
@@ -70,6 +70,7 @@ main (int argc, char *argv[])
 
   builder = gtk_builder_new ();
   gtk_builder_add_from_file (builder, filename, NULL);
+  gtk_builder_connect_signals (builder, NULL);
 
   window = GTK_WIDGET (gtk_builder_get_object (builder, "window1"));
   g_object_unref (G_OBJECT (builder));