diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index eff2cacd52093962d17bb9798b21ed20d7b1a995..19bf6822911cd2f61aaa3570e475a922d3376c0a 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2469,6 +2469,7 @@ static void addrconf_add_mroute(struct net_device *dev)
 		.fc_flags = RTF_UP,
 		.fc_type = RTN_UNICAST,
 		.fc_nlinfo.nl_net = dev_net(dev),
+		.fc_protocol = RTPROT_KERNEL,
 	};
 
 	ipv6_addr_set(&cfg.fc_dst, htonl(0xFF000000), 0, 0, 0);