diff --git a/core/lib/Drupal/Core/Form/FormCache.php b/core/lib/Drupal/Core/Form/FormCache.php
index feb66d4..5c77c30 100644
--- a/core/lib/Drupal/Core/Form/FormCache.php
+++ b/core/lib/Drupal/Core/Form/FormCache.php
@@ -218,7 +218,7 @@ public function setCache($form_build_id, $form, FormStateInterface $form_state)
    * Checks if the page is cacheable.
    */
   protected function isPageCacheable($allow_caching = NULL) {
-    return ($this->request_policy->check($this->request) === RequestPolicyInterface::ALLOW);
+    return ($this->requestPolicy->check($this->request) === RequestPolicyInterface::ALLOW);
   }
 
 }