diff --git a/share/man/man4/tty.4 b/share/man/man4/tty.4
index a39ef1a20df5..d6f86729551d 100644
--- a/share/man/man4/tty.4
+++ b/share/man/man4/tty.4
@@ -161,7 +161,7 @@ file descriptor zero by the following code fragment:
 Change to the new line discipline pointed to by
 .Fa ldisc .
 The available line disciplines are listed in
-.Pa Aq sys/termios.h
+.Pa Aq sys/ttycom.h
 and currently are:
 .Pp
 .Bl -tag -width TIOCGWINSZ -compact
@@ -171,6 +171,8 @@ Termios interactive line discipline.
 Tablet line discipline.
 .It SLIPDISC
 Serial IP line discipline.
+.It PPPDISC
+PPP line discipline.
 .El
 .Pp
 .It Dv TIOCGETD Fa int *ldisc