diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 33df4d7..8ca3eb06 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -608,7 +608,7 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 		tos |= RTO_ONLINK;
 
 	if (ipv4_is_multicast(daddr)) {
-		if (!ipc.oif)
+		if (!ipc.oif || netif_index_is_l3_master(sock_net(sk), ipc.oif))
 			ipc.oif = inet->mc_index;
 		if (!saddr)
 			saddr = inet->mc_addr;