diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 664ff0ee1c8347d0276aa81a632cb5048f70c559..743f5542d65a6385c7ae423ddb49d4c69daaeaee 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1402,6 +1402,7 @@ EXPORT_SYMBOL_GPL(snmp_mib_free);
 #ifdef CONFIG_IP_MULTICAST
 static struct net_protocol igmp_protocol = {
 	.handler =	igmp_rcv,
+	.netns_ok =	1,
 };
 #endif