diff --git a/functions/mail.xml b/functions/mail.xml
index 4eb77bd395..d9f9578575 100644
--- a/functions/mail.xml
+++ b/functions/mail.xml
@@ -1,5 +1,5 @@
 <?xml encoding="iso-8859-1"?>
-<!-- $Revision: 1.28 $ -->
+<!-- $Revision: 1.29 $ -->
  <reference id="ref.mail">
   <title>Mail functions</title>
   <titleabbrev>Mail</titleabbrev>
@@ -98,7 +98,7 @@ mail("nobody@aol.com", "the subject", $message,
       <title>Sending mail with extra headers and setting an additional command line parameter.</title>
       <programlisting>
 mail("nobody@aol.com", "the subject", $message,
-     "From: webmaster@$SERVER_NAME", "-fwebmaster@$SERVERNAME");
+     "From: webmaster@$SERVER_NAME", "-fwebmaster@$SERVER_NAME");
       </programlisting>
      </example>
      You can also use fairly simple string building techniques to