diff --git a/apps/user_ldap/lib/wizard.php b/apps/user_ldap/lib/wizard.php
index fb6aca9e961ce4590826f347dac4f3e2b3c16088..9286af46bea3c110547689a8e56891009a496ed8 100644
--- a/apps/user_ldap/lib/wizard.php
+++ b/apps/user_ldap/lib/wizard.php
@@ -215,7 +215,7 @@ class Wizard extends LDAPUtility {
 			throw new \Exception('Could not connect to LDAP');
 		}
 
-		$obclasses = array('posixGroup', 'group', '*');
+		$obclasses = array('posixGroup', 'group', 'zimbraDistributionList', '*');
 		$this->determineFeature($obclasses, 'cn', $dbkey, $confkey);
 
 		if($testMemberOf) {