diff --git a/src/Symfony/Component/Security/Core/Exception/AccountStatusException.php b/src/Symfony/Component/Security/Core/Exception/AccountStatusException.php
index b3263cbca5fc3..76878f9ff2916 100644
--- a/src/Symfony/Component/Security/Core/Exception/AccountStatusException.php
+++ b/src/Symfony/Component/Security/Core/Exception/AccountStatusException.php
@@ -22,7 +22,7 @@
  */
 abstract class AccountStatusException extends AuthenticationException
 {
-    private UserInterface $user;
+    private ?UserInterface $user = null;
 
     /**
      * Get the user.