diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxFormPageCacheTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxFormPageCacheTest.php
index 088ae33e8f..395e497463 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxFormPageCacheTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxFormPageCacheTest.php
@@ -61,7 +61,7 @@ public function testSimpleAJAXFormValue() {
     $this->assertNotEqual($build_id_first_ajax, $build_id_second_ajax, 'Build id changes on subsequent AJAX submissions');
 
     // Repeat the test sequence but this time with a page loaded from the cache.
-    $this->drupalGet('ajax_forms_test_get_form');
+    $session->reload();
     $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT', 'Page was cached.');
     $build_id_from_cache_initial = $this->getFormBuildId();
     $this->assertEqual($build_id_initial, $build_id_from_cache_initial, 'Build id is the same as on the first request');