diff --git a/reference/mysql/functions/mysql-field-len.xml b/reference/mysql/functions/mysql-field-len.xml
index e8cd504139..2333a068b4 100644
--- a/reference/mysql/functions/mysql-field-len.xml
+++ b/reference/mysql/functions/mysql-field-len.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.6 $ -->
+<!-- $Revision: 1.7 $ -->
 <!-- splitted from ./en/functions/mysql.xml, last change in rev 1.17 -->
 <refentry id="function.mysql-field-len">
  <refnamediv>
@@ -31,9 +31,9 @@ if (!$result) {
     exit;
 }
 
-// Will get the length of the value in email so for example
-// user@example.com would give us a length of 16
-$length = mysql_field_len($result, 'email');
+// Will get the length of the id field as specified in the database
+// schema. 
+$length = mysql_field_len($result, 0);
 echo $length;
 ?>
 ]]>