diff --git a/core/lib/Drupal/Core/Menu/LocalTaskManager.php b/core/lib/Drupal/Core/Menu/LocalTaskManager.php
index 3d021c0..997c6db 100644
--- a/core/lib/Drupal/Core/Menu/LocalTaskManager.php
+++ b/core/lib/Drupal/Core/Menu/LocalTaskManager.php
@@ -11,6 +11,7 @@
 use Drupal\Core\Access\AccessManagerInterface;
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Cache\CacheBackendInterface;
+use Drupal\Core\Cache\NullBackend;
 use Drupal\Core\Controller\ControllerResolverInterface;
 use Drupal\Core\Extension\ModuleHandlerInterface;
 use Drupal\Core\Language\LanguageManagerInterface;
@@ -135,7 +136,7 @@ class LocalTaskManager extends DefaultPluginManager implements LocalTaskManagerI
    *   The current user.
    */
   public function __construct(ControllerResolverInterface $controller_resolver, RequestStack $request_stack, RouteMatchInterface $route_match, RouteProviderInterface $route_provider, RouteBuilderInterface $route_builder, ModuleHandlerInterface $module_handler, CacheBackendInterface $cache, LanguageManagerInterface $language_manager, AccessManagerInterface $access_manager, AccountInterface $account) {
-    $this->discovery = new YamlDiscovery('local_tasks', $module_handler->getModuleDirectories());
+    $this->discovery = new YamlDiscovery('links.task', $module_handler->getModuleDirectories());
     $this->discovery = new ContainerDerivativeDiscoveryDecorator($this->discovery);
     $this->factory = new ContainerFactory($this, '\Drupal\Core\Menu\LocalTaskInterface');
     $this->controllerResolver = $controller_resolver;