diff --git a/ssh.1 b/ssh.1
index 71baf45..5ce1cfe 100644
--- a/ssh.1
+++ b/ssh.1
@@ -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.1,v 1.230 2005/12/23 23:46:23 jmc Exp $
+.\" $OpenBSD: ssh.1,v 1.231 2005/12/31 01:38:45 stevesk Exp $
 .Dd September 25, 1999
 .Dt SSH 1
 .Os
@@ -369,6 +369,13 @@
 client into
 .Dq master
 mode for connection sharing.
+Multiple
+.Fl M
+options places
+.Nm
+into
+.Dq master
+mode with confirmation required before slave connections are accepted.
 Refer to the description of
 .Cm ControlMaster
 in