diff --git a/core/lib/Drupal/Core/Session/AnonymousUserSession.php b/core/lib/Drupal/Core/Session/AnonymousUserSession.php
index 661b0c4..e3399c1 100644
--- a/core/lib/Drupal/Core/Session/AnonymousUserSession.php
+++ b/core/lib/Drupal/Core/Session/AnonymousUserSession.php
@@ -10,7 +10,7 @@
 use Symfony\Component\DependencyInjection\Exception\RuntimeException;
 
 /**
- *
+ * An account implementation representing an anonymous user.
  */
 class AnonymousUserSession extends UserSession {