diff --git a/core/lib/Drupal/Core/Cache/CacheCollector.php b/core/lib/Drupal/Core/Cache/CacheCollector.php
index 76444ec..b49b5a4 100644
--- a/core/lib/Drupal/Core/Cache/CacheCollector.php
+++ b/core/lib/Drupal/Core/Cache/CacheCollector.php
@@ -52,7 +52,7 @@
   /**
    * The lock backend that should be used.
    *
-   * @var LockBackendInterface
+   * @var \Drupal\Core\Lock\LockBackendInterface
    */
   protected $lock;