diff --git a/share/man/man4/tcp.4 b/share/man/man4/tcp.4
--- a/share/man/man4/tcp.4
+++ b/share/man/man4/tcp.4
@@ -34,7 +34,7 @@
 .\"     From: @(#)tcp.4	8.1 (Berkeley) 6/5/93
 .\" $FreeBSD$
 .\"
-.Dd August 1, 2022
+.Dd October 4, 2022
 .Dt TCP 4
 .Os
 .Sh NAME
diff --git a/sys/netinet/tcp_syncache.c b/sys/netinet/tcp_syncache.c
--- a/sys/netinet/tcp_syncache.c
+++ b/sys/netinet/tcp_syncache.c
@@ -1679,12 +1679,12 @@
 		 * A timestamp received in a SYN makes
 		 * it ok to send timestamp requests and replies.
 		 */
-		if (to->to_flags & TOF_TS) {
+		if ((to->to_flags & TOF_TS) && !(V_tcp_do_rfc1323 == 2)) {
 			sc->sc_tsreflect = to->to_tsval;
 			sc->sc_flags |= SCF_TIMESTAMP;
 			sc->sc_tsoff = tcp_new_ts_offset(inc);
 		}
-		if (to->to_flags & TOF_SCALE) {
+		if ((to->to_flags & TOF_SCALE) && !(V_tcp_do_rfc1323 == 3)) {
 			int wscale = 0;
 
 			/*