diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 41a8a5f06602b2a98c36225925765783cb21d075..73eb8c33e9f0022692fdf6cfe387f83322d72d99 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1742,6 +1742,7 @@ int __init ndisc_init(struct net_proto_family *ops)
 
 void ndisc_cleanup(void)
 {
+	unregister_netdevice_notifier(&ndisc_netdev_notifier);
 #ifdef CONFIG_SYSCTL
 	neigh_sysctl_unregister(&nd_tbl.parms);
 #endif