diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index d02f7e4..5bddea7 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -856,6 +856,8 @@
 
 	if (!fl6.flowi6_oif && ipv6_addr_is_multicast(&fl6.daddr))
 		fl6.flowi6_oif = np->mcast_oif;
+	else if (!fl6.flowi6_oif)
+		fl6.flowi6_oif = np->ucast_oif;
 	security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
 
 	dst = ip6_dst_lookup_flow(sk, &fl6, final_p, true);