diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 5ca56ce..e289830 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -798,7 +798,7 @@
 	__tcp_v6_send_check(buff, &fl6.saddr, &fl6.daddr);
 
 	fl6.flowi6_proto = IPPROTO_TCP;
-	if (rt6_need_strict(&fl6.daddr) || !oif)
+	if (rt6_need_strict(&fl6.daddr) && !oif)
 		fl6.flowi6_oif = inet6_iif(skb);
 	else
 		fl6.flowi6_oif = oif;