diff --git a/src/Symfony/Component/HttpFoundation/Tests/ResponseFunctionalTest.php b/src/Symfony/Component/HttpFoundation/Tests/ResponseFunctionalTest.php
index c908b1b993..7aad1cac2c 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/ResponseFunctionalTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/ResponseFunctionalTest.php
@@ -45,6 +45,10 @@ class ResponseFunctionalTest extends TestCase
      */
     public function testCookie($fixture)
     {
+        if (\PHP_VERSION_ID >= 80000 && 'cookie_max_age' === $fixture) {
+            $this->markTestSkipped('This fixture produces a fatal error on PHP 8.');
+        }
+
         $result = file_get_contents(sprintf('http://localhost:8054/%s.php', $fixture));
         $this->assertStringMatchesFormatFile(__DIR__.sprintf('/Fixtures/response-functional/%s.expected', $fixture), $result);
     }