diff --git a/doc/config.html b/doc/config.html
index 09065302..6c3d9cd4 100755
--- a/doc/config.html
+++ b/doc/config.html
@@ -699,6 +699,15 @@ each command in the list defined with the "<I>Menu commands</I>" option, a list
 user names can be specified, which are allowed to execute that command. If the
 allow option is not present, all users may execute that command by default.
 <p>
+
+<ul>
+<LI><b><code>Deny &lt;command&gt; = &lt;user list&gt;</code></b>
+</ul>
+<p>
+Used to deny a certain command to a list of users. This can be used to deny
+a guest user to enter new messages or modify a message.
+<p>
+
 <ul>
 <LI><b><code>Hosts allow = &lt;list&gt;</code></b>
 <LI><b><code>Hosts deny = &lt;list&gt;</code></b>