diff --git a/src/posts/2024-03-02-version-3.md b/src/posts/2024-03-02-version-3.md
index dbdd133..73d305b 100644
--- a/src/posts/2024-03-02-version-3.md
+++ b/src/posts/2024-03-02-version-3.md
@@ -283,7 +283,7 @@ But wait... I can keep going... take for example my `/catalogue/books` folder. T
 module.exports = {
   layout: "layouts/catalogue-item",
   tags: "book",
-  permalink: "catalogue/books/{{ page.fileSlug }}/index.html",
+  permalink: "catalogue/books/{% raw %}{{ page.fileSlug }}{% endraw %}/index.html",
   linkTitle: "View book details",
   eleventyComputed: {
     tertiary: (data) =>