php - Symfony /sitemap.xml route inaccessible

one text

In a symfony 5 app, i have a route @Route("/sitemap.xml", name="sitemap", defaults={"_format"="xml"}) When i try to access this route, symfony look for the sitemap file, not the route. How can i force the route call, not the file? My controller :

class SitemapController extends AbstractController
{
    /**
     * @Route("/sitemap.xml", name="sitemap", defaults={"_format"="xml"})
     */
    public function index(Request $request)
    {
     $urls = [];
     ...
        $response = new Response(
            $this->renderView('sitemap/index.html.twig', ['urls' => $urls,
                'hostname' => $hostname]),
            200
        );
        
        $response->headers->set('Content-Type', 'text/xml');
        
        return $response;
    }
    
}

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