diff --git a/src/js/client.js b/src/js/client.js
index b30651d78..694221ad5 100644
--- a/src/js/client.js
+++ b/src/js/client.js
@@ -1379,6 +1379,15 @@ angular.module('Application').service('Client', ['$http', '$interval', 'md5', 'N
         });
     };
 
+    Client.prototype.startExternalLdapSync = function (callback) {
+        post('/api/v1/cloudron/sync_external_ldap', {}, null, function (error, data, status) {
+            if (error) return callback(error);
+            if (status !== 202) return callback(new ClientError(status, data));
+
+            callback(null);
+        });
+    };
+
     Client.prototype.setUserActive = function (userId, active, callback) {
         var data = {
             active: active
diff --git a/src/views/users.html b/src/views/users.html
index 479720e3b..dffe61a35 100644
--- a/src/views/users.html
+++ b/src/views/users.html
@@ -402,6 +402,7 @@
       <div class="col-md-12">
         <p>
           This option allows to use an external LDAP or ActiveDirectory service for user management.
+          <button class="btn btn-primary pull-right" ng-show="externalLdap.enabled" ng-click="externalLdap.sync()"><i class="fa fa-circle-notch fa-spin" ng-show="externalLdap.syncBusy"></i> Synchronize users</button>
         </p>
 
         <div class="checkbox">
diff --git a/src/views/users.js b/src/views/users.js
index 89d4ee5f9..e9b736f17 100644
--- a/src/views/users.js
+++ b/src/views/users.js
@@ -417,6 +417,7 @@ angular.module('Application').controller('UsersController', ['$scope', '$locatio
         busy: false,
         error: {},
         success: false,
+        syncBusy: false,
 
         // fields
         enabled: false,
@@ -426,6 +427,18 @@ angular.module('Application').controller('UsersController', ['$scope', '$locatio
         bindDn: '',
         bindPassword: '',
 
+        sync: function () {
+            $scope.externalLdap.syncBusy = true;
+            Client.startExternalLdapSync(function (error, result) {
+                if (error) {
+                    $scope.externalLdap.syncBusy = false;
+                    console.error('Unable to start ldap syncer task.', error);
+                } else {
+                    console.log(result);
+                }
+            })
+        },
+
         submit: function () {
             $scope.externalLdap.busy = true;
             $scope.externalLdap.error = {};