diff --git a/src/views/users.html b/src/views/users.html
index f778a628b..789999fc6 100644
--- a/src/views/users.html
+++ b/src/views/users.html
@@ -202,10 +202,12 @@
         <h4 class="modal-title">Edit group {{ groupEdit.groupInfo.name }}</h4>
       </div>
       <div class="modal-body">
+        <p class="text-warning" ng-show="groupEdit.source">This group is synced from the external LDAP directory.</p>
+
         <form name="groupEdit_form" role="form" ng-submit="groupEdit.submit()" autocomplete="off">
           <div class="form-group" ng-class="{ 'has-error': groupEditForm.groupName.$invalid }">
             <label class="control-label">Group name</label>
-            <input type="text" class="form-control" ng-model="groupEdit.name" name="groupName" ng-disabled="groupEdit.busy" autofocus>
+            <input type="text" class="form-control" ng-model="groupEdit.name" name="groupName" ng-disabled="groupEdit.busy || groupEdit.source" autofocus>
           </div>
           <div class="form-group">
             <label class="control-label">Users</label>
diff --git a/src/views/users.js b/src/views/users.js
index 0608fedac..0f85fe618 100644
--- a/src/views/users.js
+++ b/src/views/users.js
@@ -329,12 +329,14 @@ angular.module('Application').controller('UsersController', ['$scope', '$locatio
         error: {},
         groupInfo: {},
         name: '',
+        source: '',
         selectedUsers: [],
 
         show: function (groupInfo) {
             $scope.groupEdit.error = {};
             $scope.groupEdit.groupInfo = groupInfo;
             $scope.groupEdit.name = groupInfo.name;
+            $scope.groupEdit.source = groupInfo.source;
             $scope.groupEdit.selectedUsers = groupInfo.userIds.map(function (uid) { return $scope.allUsersById[uid]; });
 
             $scope.groupEdit_form.$setPristine();