diff --git a/doc/reference.html b/doc/reference.html
index 39f6437..08fd068 100644
--- a/doc/reference.html
+++ b/doc/reference.html
@@ -141,7 +141,7 @@
 <td><ul>
 <li><a href="smtp.html">SMTP (socket.smtp)</a>
     <ul>
-    <li> <a href="mod.html#mail">mail</a>
+    <li> <a href="smtp.html#mail">mail</a>
     </ul>
 </ul></td>
 <td><ul>