diff --git a/www/manager6/dc/AuthEditAD.js b/www/manager6/dc/AuthEditAD.js
index ec5e780..530b1a6 100644
--- a/www/manager6/dc/AuthEditAD.js
+++ b/www/manager6/dc/AuthEditAD.js
@@ -17,6 +17,13 @@ Ext.define('PVE.panel.ADInputPanel', {
                 emptyText: 'company.net',
                 allowBlank: false,
             },
+            {
+                xtype: 'proxmoxtextfield',
+                name: 'user_attr',
+                fieldLabel: gettext('User Attribute Name'),
+                emptyText: Proxmox.Utils.defaultText + ' (sAMAccountName)',
+                deleteEmpty: !me.isCreate,
+            },
             {
                 xtype: 'proxmoxcheckbox',
                 fieldLabel: gettext('Case-Sensitive'),