diff --git a/src/Validator/ValidatorMiddleware.php b/src/Validator/ValidatorMiddleware.php
index 4f37646..304924d 100644
--- a/src/Validator/ValidatorMiddleware.php
+++ b/src/Validator/ValidatorMiddleware.php
@@ -3,6 +3,7 @@ declare(strict_types=1);
 
 namespace Kiri\Router\Validator;
 
+use Kiri;
 use Kiri\Router\Base\Middleware;
 use Psr\Http\Message\ResponseInterface;
 use Psr\Http\Message\ServerRequestInterface;
@@ -35,6 +36,8 @@ class ValidatorMiddleware implements MiddlewareInterface
     {
         $validator = Middleware::getValidator($this->class, $this->method);
         if (!$validator->run($request)) {
+            Kiri::getLogger()->println($request->getUri()->getPath() . ' `' . $validator->error() . '`');
+
             return di(ResponseInterface::class)->html($validator->error(), 415);
         } else {
             return $handler->handle($request);