diff --git a/tbl_addfield.php b/tbl_addfield.php
index 75b32bb44..886b93938 100644
--- a/tbl_addfield.php
+++ b/tbl_addfield.php
@@ -13,6 +13,7 @@ require_once './libraries/common.inc.php';
 require_once './libraries/Table.class.php';
 
 $GLOBALS['js_include'][] = 'functions.js';
+$GLOBALS['js_include'][] = 'mootools-more.js';
 require_once './libraries/header.inc.php';
 
 // Check parameters