diff --git a/gio/gapplication.c b/gio/gapplication.c
index 8ad4d0ff0..f702b6b9d 100644
--- a/gio/gapplication.c
+++ b/gio/gapplication.c
@@ -1373,6 +1373,9 @@ g_application_finalize (GObject *object)
 {
   GApplication *application = G_APPLICATION (object);
 
+  if (application->priv->inactivity_timeout_id)
+    g_source_remove (application->priv->inactivity_timeout_id);
+
   g_slist_free_full (application->priv->option_groups, (GDestroyNotify) g_option_group_unref);
   if (application->priv->main_options)
     g_option_group_unref (application->priv->main_options);