diff --git a/phpgwapi/inc/class.accounts_ads.inc.php b/phpgwapi/inc/class.accounts_ads.inc.php
index 56c1f06d3f..d6125b88f5 100644
--- a/phpgwapi/inc/class.accounts_ads.inc.php
+++ b/phpgwapi/inc/class.accounts_ads.inc.php
@@ -588,7 +588,7 @@ class accounts_ads
 			$attributes = array();
 			foreach($new2adldap as $egw => $adldap)
 			{
-				if (isset($data[$egw])) $attributes[$adldap] = $data[$egw];
+				$attributes[$adldap] = (string)$data[$egw];
 			}
 			$attributes['container'] = $this->_get_container();