diff --git a/src/devices/wwan/nm-modem-broadband.c b/src/devices/wwan/nm-modem-broadband.c
index 1cb549b017..b9f5f236be 100644
--- a/src/devices/wwan/nm-modem-broadband.c
+++ b/src/devices/wwan/nm-modem-broadband.c
@@ -1127,7 +1127,7 @@ simple_disconnect_ready (GObject *source_object,
 {
 	MMModemSimple *modem_iface = MM_MODEM_SIMPLE (source_object);
 	DisconnectContext *ctx = user_data;
-	GError *error = NULL;
+	gs_free_error GError *error = NULL;
 
 	if (!mm_modem_simple_disconnect_finish (modem_iface, res, &error)) {
 		if (   ctx->warn