diff --git a/Classes/ViewHelpers/LoginFormViewHelper.php b/Classes/ViewHelpers/LoginFormViewHelper.php
index 0bc68e98..ba7a3a60 100644
--- a/Classes/ViewHelpers/LoginFormViewHelper.php
+++ b/Classes/ViewHelpers/LoginFormViewHelper.php
@@ -205,13 +205,13 @@ protected function addFieldNamePrefixToViewHelperVariableContainer(): void
     /**
      * Renders a hidden form field containing the technical identity of the given object.
      *
-     * @param object $object Object to create the identity field for
+     * @param mixed $object Object to create the identity field for
      * @param string $name Name
      *
      * @return string A hidden field containing the Identity (UID in TYPO3 Flow, uid in Extbase) of the given object or NULL if the object is unknown to the persistence framework
      * @see \TYPO3\CMS\Extbase\Mvc\Controller\Argument::setValue()
      */
-    protected function renderHiddenIdentityField(?object $object, ?string $name): string
+    protected function renderHiddenIdentityField(mixed $object, ?string $name): string
     {
         if ($object instanceof LazyLoadingProxy) {
             $object = $object->_loadRealInstance();