diff --git a/tests/Console/ModelsCommand/LaravelCustomCasts/Casts/CustomCasterWithStaticReturnType.php b/tests/Console/ModelsCommand/LaravelCustomCasts/Casts/CustomCasterWithStaticReturnType.php
index 5a65eaf40..062404680 100644
--- a/tests/Console/ModelsCommand/LaravelCustomCasts/Casts/CustomCasterWithStaticReturnType.php
+++ b/tests/Console/ModelsCommand/LaravelCustomCasts/Casts/CustomCasterWithStaticReturnType.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Barryvdh\LaravelIdeHelper\Tests\Console\ModelsCommand\LaravelCustomCasts\Casts;
 
 use Illuminate\Contracts\Database\Eloquent\CastsAttributes;