diff --git a/man4/tty_ioctl.4 b/man4/tty_ioctl.4
index 6068c7249..6d0c4c869 100644
--- a/man4/tty_ioctl.4
+++ b/man4/tty_ioctl.4
@@ -348,6 +348,11 @@ and
 .BR rlogind (8)
 to implement a remote-echoed,
 locally \fB^S\fP/\fB^Q\fP flow-controlled remote login.
+.TP
+.BI "TIOGCPKT	const int *" argp
+Return the current packet mode setting in the integer pointed to by
+.IR argp 
+(since Linux 3.8).
 .PP
 The BSD ioctls
 .BR TIOCSTOP ,