diff --git a/plugins/CorePluginsAdmin/Controller.php b/plugins/CorePluginsAdmin/Controller.php
index ea9a386ced9511cd012d11210c8f5ef774d13853..c9b4a48a7cd4a4fc91a5be09838da66d68f3c163 100644
--- a/plugins/CorePluginsAdmin/Controller.php
+++ b/plugins/CorePluginsAdmin/Controller.php
@@ -247,7 +247,7 @@ class Controller extends Plugin\ControllerAdmin
         $view->deactivateNonce = Nonce::getNonce(static::DEACTIVATE_NONCE);
         $view->pluginsInfo = $this->getPluginsInfo($themesOnly);
 
-        $users = \Piwik\Plugins\UsersManager\API::getInstance()->getUsers();
+        $users = Request::processRequest('UsersManager.getUsers');
         $view->otherUsersCount = count($users) - 1;
         $view->themeEnabled = \Piwik\Plugin\Manager::getInstance()->getThemeEnabled()->getPluginName();
 
diff --git a/plugins/UsersManager/Controller.php b/plugins/UsersManager/Controller.php
index fee919680dbf7f8b70a31898d65b0bdd25d969c3..3ee984957168c565a02f2d515b5884f51e33c015 100644
--- a/plugins/UsersManager/Controller.php
+++ b/plugins/UsersManager/Controller.php
@@ -106,7 +106,7 @@ class Controller extends ControllerAdmin
         if (Piwik::isUserHasSomeAdminAccess()) {
             $view->showLastSeen = true;
 
-            $users = APIUsersManager::getInstance()->getUsers();
+            $users = Request::processRequest('UsersManager.getUsers');
             foreach ($users as $index => $user) {
                 $usersAliasByLogin[$user['login']] = $user['alias'];