diff --git a/src/lib/EventListener/ConditionallyRemoveVaryHeaderListener.php b/src/lib/EventListener/ConditionallyRemoveVaryHeaderListener.php
index 15ce8f0..74aac3f 100644
--- a/src/lib/EventListener/ConditionallyRemoveVaryHeaderListener.php
+++ b/src/lib/EventListener/ConditionallyRemoveVaryHeaderListener.php
@@ -53,7 +53,7 @@ public function onKernelResponse(ResponseEvent $event): void
             return;
         }
 
-        if (!\in_array($event->getRequest()->get('_route'), $this->routes)) {
+        if (!\in_array($event->getRequest()->attributes->get('_route'), $this->routes)) {
             return;
         }
 
diff --git a/tests/bundle/EventListener/ConditionallyRemoveVaryHeaderListenerTest.php b/tests/bundle/EventListener/ConditionallyRemoveVaryHeaderListenerTest.php
index d70f8b6..3f75281 100644
--- a/tests/bundle/EventListener/ConditionallyRemoveVaryHeaderListenerTest.php
+++ b/tests/bundle/EventListener/ConditionallyRemoveVaryHeaderListenerTest.php
@@ -77,9 +77,8 @@ public function onKernelResponseProvider(): iterable
      */
     public function testOnKernelResponse(array $varyHeaders, array $expectedVaryHeaders): void
     {
-        $request = $this->createMock(Request::class);
-        $request->method('get')
-            ->willReturn('testroute1');
+        $request = new Request();
+        $request->attributes->set('_route', 'testroute1');
 
         $response = new Response('test content', Response::HTTP_OK, ['vary' => $varyHeaders]);