diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 7727ffe..da23221 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2733,7 +2733,7 @@ static void tcp_process_loss(struct sock *sk, int flag, bool is_dupack,
 		 * lost, i.e., never-retransmitted data are (s)acked.
 		 */
 		if ((flag & FLAG_ORIG_SACK_ACKED) &&
-		    tcp_try_undo_loss(sk, true))
+		    tcp_try_undo_loss(sk, tp->undo_marker))
 			return;
 
 		if (after(tp->snd_nxt, tp->high_seq)) {