diff --git a/addressbook/inc/class.addressbook_bo.inc.php b/addressbook/inc/class.addressbook_bo.inc.php
index 0c08f31f4b..f7104b9728 100755
--- a/addressbook/inc/class.addressbook_bo.inc.php
+++ b/addressbook/inc/class.addressbook_bo.inc.php
@@ -119,6 +119,12 @@ class addressbook_bo extends addressbook_so
 	 * @var boolean
 	 */
 	var $default_private;
+	/**
+	 * Categories object
+	 *
+	 * @var object
+	 */
+	var $categories;
 
 	function __construct($contact_app='addressbook')
 	{
@@ -1503,8 +1509,6 @@ class addressbook_bo extends addressbook_so
 		return $adr_format;
 	}
 
-	var $categories;
-
 	/**
 	 * Find existing categories in database by name or add categories that do not exist yet
 	 * currently used for vcard import