Fixes #398

data/web/modals/admin.php

@@ -54,7 +54,7 @@ if (!isset($_SESSION['mailcow_cc_role'])) {
             </div>
             <div class="form-group">
               <div class="col-sm-offset-2 col-sm-10">
-                <button class="btn btn-default" id="add_item" data-id="domain_admin" data-api-url='add/domain_admin' data-api-attr='{}' href="#"><span class="glyphicon glyphicon-plus" aria-hidden="true"></span> <?=$lang['admin']['add'];?></button>
+                <button class="btn btn-default" id="add_item" data-id="domain_admin" data-api-url='add/domain-admin' data-api-attr='{}' href="#"><span class="glyphicon glyphicon-plus" aria-hidden="true"></span> <?=$lang['admin']['add'];?></button>
               </div>
             </div>
           </form>