diff --git a/core/modules/tracker/src/Tests/TrackerTest.php b/core/modules/tracker/src/Tests/TrackerTest.php
index 7e14bab..98229c9 100644
--- a/core/modules/tracker/src/Tests/TrackerTest.php
+++ b/core/modules/tracker/src/Tests/TrackerTest.php
@@ -34,7 +34,7 @@ class TrackerTest extends WebTestBase {
   /**
    * A second user that will 'create' comments and nodes.
    *
-   * @var object
+   * @var \Drupal\user\UserInterface
    */
   protected $otherUser;