diff --git a/Classes/Validation/Validator/ClassExistsValidator.php b/Classes/Validation/Validator/ClassExistsValidator.php
index <HASH>..<HASH> 100644
--- a/Classes/Validation/Validator/ClassExistsValidator.php
+++ b/Classes/Validation/Validator/ClassExistsValidator.php
@@ -14,10 +14,9 @@
 namespace Romm\ConfigurationObject\Validation\Validator;
 
 use Romm\ConfigurationObject\Core\Core;
-use TYPO3\CMS\Core\SingletonInterface;
 use TYPO3\CMS\Extbase\Validation\Validator\AbstractValidator;
 
-class ClassExistsValidator extends AbstractValidator implements SingletonInterface
+class ClassExistsValidator extends AbstractValidator
 {
 
     /**
[BUGFIX] Remove `SingletonInterface` from validator

A class using arguments in constructor can't be a singleton.