diff --git a/lam/lib/account.inc b/lam/lib/account.inc
index 77d28cf0..1f4d0fa2 100644
--- a/lam/lib/account.inc
+++ b/lam/lib/account.inc
@@ -1118,7 +1118,7 @@ function createuser($values) { // Will create the LDAP-Account
 	// Add User to Additional Groups
 	if ($values->general_groupadd[0])
 		foreach ($values->general_groupadd as $group2) {
-			$result = ldap_search($_SESSION['ldap']->server(), $_SESSION['config']->get_GroupSuffix(), "&((objectclass=posixGroup)(cn=$group2))", array('memberUid'));
+			$result = ldap_search($_SESSION['ldap']->server(), $_SESSION['config']->get_GroupSuffix(), "(&(objectclass=posixGroup)(cn=$group2))", array('memberUid'));
 			$entry = ldap_first_entry($_SESSION['ldap']->server(), $result);
 			$group = ldap_get_attributes($_SESSION['ldap']->server(), $entry);
 			$dn = (ldap_get_dn($_SESSION['ldap']->server(), $entry));