diff --git a/apps/user_ldap/lib/Group_LDAP.php b/apps/user_ldap/lib/Group_LDAP.php
index 2f7b2c24ab3c4..70dca6a40cab6 100644
--- a/apps/user_ldap/lib/Group_LDAP.php
+++ b/apps/user_ldap/lib/Group_LDAP.php
@@ -494,7 +494,7 @@ public function getUsersInGidNumber(
 			$filter = $this->prepareFilterForUsersHasGidNumber($groupDN, $search);
 			$users = $this->access->fetchListOfUsers(
 				$filter,
-				[$this->access->connection->ldapUserDisplayName, 'dn'],
+				$this->access->userManager->getAttributes(true),
 				$limit,
 				$offset
 			);
@@ -618,7 +618,7 @@ public function getUsersInPrimaryGroup(
 			$filter = $this->prepareFilterForUsersInPrimaryGroup($groupDN, $search);
 			$users = $this->access->fetchListOfUsers(
 				$filter,
-				[$this->access->connection->ldapUserDisplayName, 'dn'],
+				$this->access->userManager->getAttributes(true),
 				$limit,
 				$offset
 			);