-.\" $OpenBSD: pipex.4,v 1.10 2015/09/22 11:27:13 sobrado Exp $
+.\" $OpenBSD: pipex.4,v 1.11 2017/04/18 03:21:48 yasuoka Exp $
.\"
.\" Copyright (c) 2012 YASUOKA Masahiko <yasuoka@openbsd.org>
.\" Copyright (c) 2010 SUENAGA Hiroki <hsuenaga@openbsd.org>
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
-.Dd $Mdocdate: September 22 2015 $
+.Dd $Mdocdate: April 18 2017 $
.Dt PIPEX 4
.Os
.Sh NAME
.Sh SYNOPSIS
.Cd "option PIPEX"
.Pp
+.In sys/types.h
.In sys/socket.h
.In sys/ioctl.h
+.In net/if.h
.In net/pipex.h
.Sh DESCRIPTION
.Nm