diff --git a/share/man/man5/src.conf.5 b/share/man/man5/src.conf.5
index 728c7db838e..978ce75c235 100644
--- a/share/man/man5/src.conf.5
+++ b/share/man/man5/src.conf.5
@@ -1,7 +1,7 @@
 .\" DO NOT EDIT-- this file is automatically generated.
 .\" from FreeBSD: head/tools/build/options/makeman 236279 2012-05-30 02:37:20Z gjb
 .\" $FreeBSD$
-.Dd September 8, 2012
+.Dd September 19, 2012
 .Dt SRC.CONF 5
 .Os
 .Sh NAME
@@ -551,6 +551,12 @@ Set to build some programs without IPX support.
 .\" from FreeBSD: head/tools/build/options/WITHOUT_JAIL 183242 2008-09-21 22:02:26Z sam
 Set to not build tools for the support of jails; e.g.
 .Xr jail 8 .
+.It Va WITHOUT_KDUMP
+.\" $FreeBSD$
+Set to not build
+.Xr kdump 1
+and
+.Xr truss 1 .
 .It Va WITHOUT_KERBEROS
 .\" from FreeBSD: head/tools/build/options/WITHOUT_KERBEROS 174549 2007-12-12 16:42:03Z ru
 Set this if you do not want to build Kerberos 5 (KTH Heimdal).