diff --git a/bin/stty/stty.1 b/bin/stty/stty.1
index 1863c2286176..67a32c089150 100644
--- a/bin/stty/stty.1
+++ b/bin/stty/stty.1
@@ -32,7 +32,7 @@
 .\"     @(#)stty.1	8.4 (Berkeley) 4/18/94
 .\" $FreeBSD$
 .\"
-.Dd October 20, 2018
+.Dd May 24, 2022
 .Dt STTY 1
 .Os
 .Sh NAME
@@ -145,7 +145,7 @@ Assume a line without (with) modem
 control.
 .It Cm crtscts Pq Fl crtscts
 Enable (disable) RTS/CTS flow control.
-.It Cm rtsdtr Pq Fl -rtsdtr
+.It Cm rtsdtr Pq Fl rtsdtr
 Enable (disable) asserting RTS/DTR on open.
 .El
 .Ss Input Modes: