diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index ab5358281000..62f8ba404818 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -5696,6 +5696,8 @@ void tcp_rcv_established(struct sock *sk, struct sk_buff *skb)
 				tcp_data_snd_check(sk);
 				if (!inet_csk_ack_scheduled(sk))
 					goto no_ack;
+			} else {
+				tcp_update_wl(tp, TCP_SKB_CB(skb)->seq);
 			}
 
 			__tcp_ack_snd_check(sk, 0);