diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 5f5fe4f742b9f3b24b891c9f8a40c7caab1a4c00..0a2f49a442e8373bad6e5c6919494c3b938aa1e2 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -1419,7 +1419,7 @@ struct sk_buff *ip_make_skb(struct sock *sk,
 
 	cork.flags = 0;
 	cork.addr = 0;
-	cork.opt = 0;
+	cork.opt = NULL;
 	err = ip_setup_cork(sk, &cork, ipc, rtp);
 	if (err)
 		return ERR_PTR(err);