diff --git a/lib/blog.js b/lib/blog.js
index 3e0cdd3..1434aeb 100644
--- a/lib/blog.js
+++ b/lib/blog.js
@@ -76,7 +76,7 @@ export const render_feed = (index_config, posts) => {
   index.updated = new Date();
 
   for(let post of posts) {
-    post.url = `${base_host}/blog/${post.slug}/`;
+    post.metadata.url = `${base_host}/blog/${post.slug}/`;
 
     feed.addItem({
       title: post.metadata.title,