diff --git a/core/lib/Drupal/Core/Http/HandlerStackConfigurator.php b/core/lib/Drupal/Core/Http/HandlerStackConfigurator.php
index b08717f..3dfc6b6 100644
--- a/core/lib/Drupal/Core/Http/HandlerStackConfigurator.php
+++ b/core/lib/Drupal/Core/Http/HandlerStackConfigurator.php
@@ -67,8 +67,7 @@ protected function initializeMiddlewares() {
       foreach ($this->middlewareIds as $middleware_id) {
         $middleware = $this->container->get($middleware_id);
         if (method_exists($middleware, '__invoke')) {
-          $class = get_class($middleware);
-          $this->middlewares[$middleware_id] = $class();
+          $this->middlewares[$middleware_id] = $middleware();
         }
       }
     }