diff --git a/sys/netinet/tcp_input.c b/sys/netinet/tcp_input.c
index 178455148852..c10a94c4b8b1 100644
--- a/sys/netinet/tcp_input.c
+++ b/sys/netinet/tcp_input.c
@@ -1102,8 +1102,6 @@ tcp_input(m, off0)
 	if (tp->sack_enable) {
 		/* Delete stale (cumulatively acked) SACK holes */
 		tcp_del_sackholes(tp, th);
-		tp->rcv_laststart = th->th_seq; /* last recv'd segment*/
-		tp->rcv_lastend = th->th_seq + tlen;
 	}
 
 	/*
@@ -2297,8 +2295,11 @@ tcp_input(m, off0)
 			thflags = tcp_reass(tp, th, &tlen, m);
 			tp->t_flags |= TF_ACKNOW;
 		}
-			if (tp->sack_enable)
-				tcp_update_sack_list(tp);
+		if (tp->sack_enable) {
+			tp->rcv_laststart = th->th_seq; /* last recv'd segment*/
+			tp->rcv_lastend = th->th_seq + tlen;
+			tcp_update_sack_list(tp);
+		}
 		/*
 		 * Note the amount of data that peer has sent into
 		 * our window, in order to estimate the sender's
diff --git a/sys/netinet/tcp_reass.c b/sys/netinet/tcp_reass.c
index 178455148852..c10a94c4b8b1 100644
--- a/sys/netinet/tcp_reass.c
+++ b/sys/netinet/tcp_reass.c
@@ -1102,8 +1102,6 @@ tcp_input(m, off0)
 	if (tp->sack_enable) {
 		/* Delete stale (cumulatively acked) SACK holes */
 		tcp_del_sackholes(tp, th);
-		tp->rcv_laststart = th->th_seq; /* last recv'd segment*/
-		tp->rcv_lastend = th->th_seq + tlen;
 	}
 
 	/*
@@ -2297,8 +2295,11 @@ tcp_input(m, off0)
 			thflags = tcp_reass(tp, th, &tlen, m);
 			tp->t_flags |= TF_ACKNOW;
 		}
-			if (tp->sack_enable)
-				tcp_update_sack_list(tp);
+		if (tp->sack_enable) {
+			tp->rcv_laststart = th->th_seq; /* last recv'd segment*/
+			tp->rcv_lastend = th->th_seq + tlen;
+			tcp_update_sack_list(tp);
+		}
 		/*
 		 * Note the amount of data that peer has sent into
 		 * our window, in order to estimate the sender's