diff --git a/packages/integrations/sitemap/README.md b/packages/integrations/sitemap/README.md
index f4949ca516..99e7309974 100644
--- a/packages/integrations/sitemap/README.md
+++ b/packages/integrations/sitemap/README.md
@@ -91,7 +91,7 @@ After verifying that the sitemaps are built, you can add them to your site's `<h
 </head>
 ```
 
-```txt ins={4} title="public/robots.txt"
+```yaml ins={4} title="public/robots.txt"
 User-agent: *
 Allow: /