diff --git a/gio/gtestdbus.c b/gio/gtestdbus.c
index cf7d1a4b8..6aedb3eae 100644
--- a/gio/gtestdbus.c
+++ b/gio/gtestdbus.c
@@ -94,7 +94,7 @@ _g_object_unref_and_wait_weak_notify (gpointer object)
   g_idle_add (unref_on_idle, object);
 
   /* Make sure we don't block forever */
-  timeout_id = g_timeout_add (30 * 1000, on_weak_notify_timeout, &data);
+  timeout_id = g_timeout_add_seconds (30, on_weak_notify_timeout, &data);
 
   g_main_loop_run (data.loop);