diff --git a/src/devices/nm-device.c b/src/devices/nm-device.c
index 957455204c..d85393eb7a 100644
--- a/src/devices/nm-device.c
+++ b/src/devices/nm-device.c
@@ -9948,7 +9948,7 @@ nm_device_activate_stage3_ip6_start (NMDevice *self)
 	NMDevicePrivate *priv = NM_DEVICE_GET_PRIVATE (self);
 	NMActStageReturn ret;
 	NMDeviceStateReason failure_reason = NM_DEVICE_STATE_REASON_NONE;
-	NMIP6Config *ip6_config = NULL;
+	gs_unref_object NMIP6Config *ip6_config = NULL;
 
 	g_assert (priv->ip_state_6 == NM_DEVICE_IP_STATE_WAIT);