diff --git a/Classes/ViewHelpers/Security/AbstractSecurityViewHelper.php b/Classes/ViewHelpers/Security/AbstractSecurityViewHelper.php
index 83889ed05..f4c5e8426 100644
--- a/Classes/ViewHelpers/Security/AbstractSecurityViewHelper.php
+++ b/Classes/ViewHelpers/Security/AbstractSecurityViewHelper.php
@@ -68,7 +68,7 @@ public function initializeArguments()
         );
         $this->registerArgument(
             'frontendUsers',
-            '<TYPO3\CMS\Extbase\Persistence\ObjectStorage>\TYPO3\CMS\Extbase\Domain\Model\FrontendUser',
+            ObjectStorage::class,
             'The FrontendUsers ObjectStorage to allow/deny'
         );
         $this->registerArgument(
@@ -78,7 +78,7 @@ public function initializeArguments()
         );
         $this->registerArgument(
             'frontendUserGroups',
-            '<TYPO3\CMS\Extbase\Persistence\ObjectStorage>\TYPO3\CMS\Extbase\Domain\Model\FrontendUserGroup',
+            ObjectStorage::class,
             'The FrontendUserGroups ObjectStorage to allow/deny'
         );
         $this->registerArgument(