diff --git a/tests/bundle/Core/Converter/LocationArgumentResolverTest.php b/tests/bundle/Core/Converter/LocationArgumentResolverTest.php
index 50d120b662..bfb0b845e0 100644
--- a/tests/bundle/Core/Converter/LocationArgumentResolverTest.php
+++ b/tests/bundle/Core/Converter/LocationArgumentResolverTest.php
@@ -4,6 +4,8 @@
  * @copyright Copyright (C) Ibexa AS. All rights reserved.
  * @license For full copyright and license information view LICENSE file distributed with this source code.
  */
+declare(strict_types=1);
+
 namespace Ibexa\Tests\Bundle\Core\Converter;
 
 use Generator;