diff --git a/core/modules/system/lib/Drupal/system/Tests/Bootstrap/PageCacheTest.php b/core/modules/system/lib/Drupal/system/Tests/Bootstrap/PageCacheTest.php
index 3a86929..ca2d7b3 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Bootstrap/PageCacheTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Bootstrap/PageCacheTest.php
@@ -23,8 +23,6 @@ class PageCacheTest extends WebTestBase {
    */
   public static $modules = array('test_page_test', 'system_test');
 
-  protected $dumpHeaders = TRUE;
-
   public static function getInfo() {
     return array(
       'name' => 'Page cache test',