diff --git a/www/class/centreonLDAP.class.php b/www/class/centreonLDAP.class.php
index 5eec501d410..2ed0177bef1 100644
--- a/www/class/centreonLDAP.class.php
+++ b/www/class/centreonLDAP.class.php
@@ -508,9 +508,10 @@ public function listUserForGroup($groupdn)
                 return array();
             }
             $entries = ldap_get_entries($this->ds, $result);
-            $nbEntries = !empty($entries[0]['member']['count']) ? $entries[0]['member']['count'] : 0;
+            $memberAttribute = $this->groupSearchInfo['member'];
+            $nbEntries = !empty($entries[0][$memberAttribute]['count']) ? $entries[0][$memberAttribute]['count'] : 0;
             for ($i = 0; $i < $nbEntries; $i++) {
-                $list[] = $entries[0]['member'][$i];
+                $list[] = $entries[0][$memberAttribute][$i];
             }
             restore_error_handler();
         }