diff --git a/src/Robots.latte b/src/Robots.latte
index fae9678..804025f 100644
--- a/src/Robots.latte
+++ b/src/Robots.latte
@@ -8,6 +8,7 @@
  * <https://www.peldax.com>.
 *}
 
+{contentType text/plain}
 Sitemap: {$baseUrl}/sitemap.xml
 
 {foreach $robots as $robot}