diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index e6cee5292a0b..e23d35424ca9 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -68,7 +68,7 @@ struct dst_entry *inet6_csk_route_req(struct sock *sk,
 	fl6.daddr = treq->rmt_addr;
 	final_p = fl6_update_dst(&fl6, np->opt, &final);
 	fl6.saddr = treq->loc_addr;
-	fl6.flowi6_oif = sk->sk_bound_dev_if;
+	fl6.flowi6_oif = treq->iif;
 	fl6.flowi6_mark = sk->sk_mark;
 	fl6.fl6_dport = inet_rsk(req)->rmt_port;
 	fl6.fl6_sport = inet_rsk(req)->loc_port;