diff --git a/ssh_config.5 b/ssh_config.5
index 85a686b..56df3ac 100644
--- a/ssh_config.5
+++ b/ssh_config.5
@@ -34,7 +34,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.\" $OpenBSD: ssh_config.5,v 1.13 2003/06/10 09:12:12 jmc Exp $
+.\" $OpenBSD: ssh_config.5,v 1.14 2003/06/23 09:02:44 markus Exp $
 .Dd September 25, 1999
 .Dt SSH_CONFIG 5
 .Os
@@ -252,6 +252,24 @@
 Multiple forwardings may be specified, and
 additional forwardings can be given on the command line.
 Only the superuser can forward privileged ports.
+.It Cm EnableSSHKeysign
+Setting this option to
+.Dq yes
+in the global client configuration file
+.Pa /etc/ssh/ssh_config
+enables the use of the helper program
+.Xr ssh-keysign 8
+during
+.Cm HostbasedAuthentication .
+The argument must be
+.Dq yes
+or
+.Dq no .
+The default is
+.Dq no .
+See
+.Xr ssh-keysign 8
+for more information.
 .It Cm EscapeChar
 Sets the escape character (default:
 .Ql ~ ) .