diff --git a/core/lib/Drupal/Core/StreamWrapper/StreamWrapperForCacheStorage.php b/core/lib/Drupal/Core/StreamWrapper/StreamWrapperForCacheStorage.php
index 6ef53d0..2e7702a 100644
--- a/core/lib/Drupal/Core/StreamWrapper/StreamWrapperForCacheStorage.php
+++ b/core/lib/Drupal/Core/StreamWrapper/StreamWrapperForCacheStorage.php
@@ -77,7 +77,7 @@ public function stream_read($count) {
   }
 
   public function stream_stat() {
-    return fstat(static::$handle);
+    return static::url_stat();
   }
 
   public function url_stat() {