diff --git a/doc/config.html b/doc/config.html
index 5f44a3c8..0bfc298b 100755
--- a/doc/config.html
+++ b/doc/config.html
@@ -1114,6 +1114,12 @@ down box by default.<br>
         <b><code>"/"</code></b> (Unix) or <b><code>"\"</code></b> or
         <b><code>"x:"</code></b> (Windows).
       </li>
+       <li>
+          <b><code>Preset on edit &lt;attribute&gt; =
+             &lt;string&gt;</code></b><br>
+          Same as <b><code>Preset &lt;attribute&gt;</code></b>, but evaluated when
+          editing existing entries.
+       </li>
       <li>
         <b><code>Preset on reply &lt;attribute&gt; =
         &lt;string&gt;</code></b><br>