diff --git a/lib/Symfony/SearchBundle/DependencyInjection/RollerworksSearchExtension.php b/lib/Symfony/SearchBundle/DependencyInjection/RollerworksSearchExtension.php
index c1f96c57..cf06cbeb 100644
--- a/lib/Symfony/SearchBundle/DependencyInjection/RollerworksSearchExtension.php
+++ b/lib/Symfony/SearchBundle/DependencyInjection/RollerworksSearchExtension.php
@@ -13,6 +13,7 @@
 
 namespace Rollerworks\Bundle\SearchBundle\DependencyInjection;
 
+use Rollerworks\Component\Search\Extension\Symfony\Validator\InputValidator;
 use Rollerworks\Component\Search\Field\FieldType;
 use Rollerworks\Component\Search\Field\FieldTypeExtension;
 use Rollerworks\Component\Search\FieldSet;
@@ -25,7 +26,6 @@
 use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
 use Symfony\Component\HttpKernel\DependencyInjection\Extension;
 use Symfony\Component\Translation\Translator;
-use Symfony\Component\Validator\Validator\ValidatorInterface;
 
 class RollerworksSearchExtension extends Extension implements PrependExtensionInterface
 {
@@ -65,7 +65,7 @@ public function load(array $configs, ContainerBuilder $container): void
             $loader->load('elasticsearch.xml');
         }
 
-        if (interface_exists(ValidatorInterface::class)) {
+        if (class_exists(InputValidator::class)) {
             $loader->load('input_validator.xml');
         }