diff --git a/Security/Authenticator/JWTAuthenticator.php b/Security/Authenticator/JWTAuthenticator.php
index 7021fc14..74619f8b 100644
--- a/Security/Authenticator/JWTAuthenticator.php
+++ b/Security/Authenticator/JWTAuthenticator.php
@@ -189,7 +189,7 @@ protected function loadUser(array $payload, string $identity): UserInterface
                 }
             }
 
-            if(!class_exists(UsernameNotFoundException::class)) {
+            if(!class_exists(UserNotFoundException::class)) {
                 $ex = new UsernameNotFoundException(sprintf('There is no user with username "%s".', $identity));
                 $ex->setUsername($identity);
             } else {