diff --git a/docs/commandref.html b/docs/commandref.html
index 29f8e81c8..d282807af 100644
--- a/docs/commandref.html
+++ b/docs/commandref.html
@@ -2882,7 +2882,7 @@ A line ending with \ will be concatenated with the next one, so long lines
   <ul>
     <code>define &lt;name&gt;  &lt;ip-address&gt; &lt;port&gt; &lt;delay&gt;</code>
     <br><br>
-    Defines a Davis VantagePro2 weatherstation attached on transparent ethernet/usb server accessable by telnet.<br><br>
+    Defines a Davis VantagePro2 weatherstation attached on transparent ethernet/usb|serial server accessable by telnet.<br><br>
 
     Examples:
     <ul>