diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index c37e9598262e..3164bae4024a 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -300,7 +300,7 @@ static int ip_finish_output(struct net *net, struct sock *sk, struct sk_buff *sk
 	if (skb_is_gso(skb))
 		return ip_finish_output_gso(net, sk, skb, mtu);
 
-	if (skb->len > mtu || (IPCB(skb)->flags & IPSKB_FRAG_PMTU))
+	if (skb->len > mtu || IPCB(skb)->frag_max_size)
 		return ip_fragment(net, sk, skb, mtu, ip_finish_output2);
 
 	return ip_finish_output2(net, sk, skb);