diff --git a/tests/TestCase.php b/tests/TestCase.php
index 15d69bf..c681f3d 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -35,6 +35,7 @@ protected function getPackageProviders($app)
     public function getEnvironmentSetUp($app)
     {
         config()->set('database.default', 'testing');
+        config()->set('app.url', 'http://localhost');
 
         /*
         $migration = include __DIR__.'/../database/migrations/create_importmap-laravel_table.php.stub';