diff --git a/{{cookiecutter.book_slug}}/.github/workflows/deploy.yml b/{{cookiecutter.book_slug}}/.github/workflows/deploy.yml
index 1dede6c..dd97cb6 100644
--- a/{{cookiecutter.book_slug}}/.github/workflows/deploy.yml
+++ b/{{cookiecutter.book_slug}}/.github/workflows/deploy.yml
@@ -7,7 +7,7 @@ on:
       - main
 
 env:
-  BASE_URL: /${{ github.event.repository.name }}
+  BASE_URL: {% raw %}/${{ github.event.repository.name }}{% endraw %}
 
 # Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
 permissions: