diff --git a/src/Auth/Storage/MemoryStorage.php b/src/Auth/Storage/MemoryStorage.php
index 44d7d8c188e..031216229ec 100644
--- a/src/Auth/Storage/MemoryStorage.php
+++ b/src/Auth/Storage/MemoryStorage.php
@@ -22,10 +22,11 @@
  */
 class MemoryStorage implements StorageInterface
 {
+
     /**
      * User record.
      *
-     * @var array
+     * @var array|null
      */
     protected $_user;