diff --git a/phpgwapi/inc/class.categories.inc.php b/phpgwapi/inc/class.categories.inc.php
index 23f210649c..ca4d764ff7 100644
--- a/phpgwapi/inc/class.categories.inc.php
+++ b/phpgwapi/inc/class.categories.inc.php
@@ -607,9 +607,10 @@
 		 * - cat's of other user
 		 *
 		 * @param string $cat_name cat-name
+		 * @param boolean $strip=false if true, strips 'X-' from category names added by some SyncML clients
 		 * @return int cat-id or 0 if not found
 		 */
-		function name2id($cat_name,$strip)
+		function name2id($cat_name,$strip=false)
 		{
 			static $cache = array();	// a litle bit of caching