diff --git a/share/man/man7/release.7 b/share/man/man7/release.7
index f5c7b0ea95a8..03e25094bc5a 100644
--- a/share/man/man7/release.7
+++ b/share/man/man7/release.7
@@ -86,6 +86,11 @@ the entire system in the clean environment with
 The detailed steps that follow are then executed to package up the
 different distributions, build the installation floppy disks, build
 release documentation, and so on.
+.Pp
+This target must be built as root with the
+.Va kern.securelevel
+sysctl set to -1
+.Pq "the default".
 .It Cm rerelease
 Assumes that the output of a release build has been manually modified,
 and performs the minimal number of steps to rebuild the release using
@@ -425,7 +430,8 @@ make release CHROOTDIR=/local3/release BUILDNAME=5.0-CURRENT \\
 .Xr build 7 ,
 .Xr ports 7 ,
 .Xr chroot 8 ,
-.Xr mtree 8
+.Xr mtree 8 ,
+.Xr sysctl 8
 .Rs
 .%T "FreeBSD Release Engineering"
 .%O http://www.FreeBSD.org/doc/en_US.ISO8859-1/articles/releng/