diff --git a/migration.rst b/migration.rst
index 6b71a07670b..ec42dfd4a33 100644
--- a/migration.rst
+++ b/migration.rst
@@ -239,6 +239,7 @@ could look something like this::
     use App\Kernel;
     use App\LegacyBridge;
     use Symfony\Component\Debug\Debug;
+    use Symfony\Component\Dotenv\Dotenv;
     use Symfony\Component\HttpFoundation\Request;
 
     require dirname(__DIR__).'/vendor/autoload.php';