diff --git a/src/settings/nm-settings-connection.c b/src/settings/nm-settings-connection.c
index ef993c39c4..9285dfbfa5 100644
--- a/src/settings/nm-settings-connection.c
+++ b/src/settings/nm-settings-connection.c
@@ -2314,6 +2314,8 @@ dispose (GObject *object)
 	}
 	g_clear_object (&priv->agent_mgr);
 
+	g_clear_pointer (&priv->filename, g_free);
+
 	G_OBJECT_CLASS (nm_settings_connection_parent_class)->dispose (object);
 }