diff --git a/libnm-core/nm-setting-connection.c b/libnm-core/nm-setting-connection.c
index db05caf63..2f64e1773 100644
--- a/libnm-core/nm-setting-connection.c
+++ b/libnm-core/nm-setting-connection.c
@@ -1643,6 +1643,7 @@ finalize (GObject *object)
 	g_free (priv->zone);
 	g_free (priv->master);
 	g_free (priv->slave_type);
+	g_free (priv->mud_url);
 	g_slist_free_full (priv->permissions, (GDestroyNotify) permission_free);
 	g_slist_free_full (priv->secondaries, g_free);