diff --git a/[refs] b/[refs]
index 5ad869cf34a1..41bf312da4ea 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f038ac8f9b9735358ef410d45f4cff1da810c1cb
+refs/heads/master: 19773b4923ed0e21e3289361dba5e69e1ce6e00b
diff --git a/trunk/net/ipv4/tcp_output.c b/trunk/net/ipv4/tcp_output.c
index f6d279a95f4b..6c7cd0a9098a 100644
--- a/trunk/net/ipv4/tcp_output.c
+++ b/trunk/net/ipv4/tcp_output.c
@@ -2488,7 +2488,7 @@ static int tcp_xmit_probe_skb(struct sock *sk, int urgent)
 	 * end to send an ack.  Don't queue or clone SKB, just
 	 * send it.
 	 */
-	TCP_SKB_CB(skb)->seq = urgent ? tp->snd_una : tp->snd_una - 1;
+	TCP_SKB_CB(skb)->seq = tp->snd_una - !urgent;
 	TCP_SKB_CB(skb)->end_seq = TCP_SKB_CB(skb)->seq;
 	TCP_SKB_CB(skb)->when = tcp_time_stamp;
 	return tcp_transmit_skb(sk, skb, 0, GFP_ATOMIC);