.../Core/EventSubscriber/RouteNormalizerRequestSubscriber.php  | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/core/lib/Drupal/Core/EventSubscriber/RouteNormalizerRequestSubscriber.php b/core/lib/Drupal/Core/EventSubscriber/RouteNormalizerRequestSubscriber.php
index e33a3a7d28..0f8e2404ba 100644
--- a/core/lib/Drupal/Core/EventSubscriber/RouteNormalizerRequestSubscriber.php
+++ b/core/lib/Drupal/Core/EventSubscriber/RouteNormalizerRequestSubscriber.php
@@ -5,8 +5,8 @@
 use Drupal\Core\Path\PathMatcherInterface;
 use Drupal\Core\Routing\RequestHelper;
 use Drupal\Core\Routing\UrlGeneratorInterface;
+use Symfony\Component\HttpKernel\Event\RequestEvent;
 use Symfony\Component\HttpKernel\KernelEvents;
-use Symfony\Component\HttpKernel\Event\GetResponseEvent;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\HttpFoundation\RedirectResponse;
 
@@ -96,14 +96,14 @@ public function onKernelRequestRedirect(GetResponseEvent $event) {
   /**
    * Detects if a redirect can be performed during the current request.
    *
-   * @param \Symfony\Component\HttpKernel\Event\GetResponseEvent $event
-   *   The Event to process.
+   * @param \Symfony\Component\HttpKernel\Event\RequestEvent $event
+   *   The request event.
    *
    * @return bool
    */
-  protected function shouldRedirect(GetResponseEvent $event) {
+  protected function shouldRedirect(RequestEvent $event) {
     return $this->routeNormalizerEnabled
-      && $event->isMasterRequest()
+      && $event->isMainRequest()
       && ($request = $event->getRequest())
       && $request->isMethod('GET')
       && !$request->query->has('destination')