diff --git a/docs/hero_mdbook_fullvm.md b/docs/hero_mdbook_fullvm.md
index dbcf679..f85b93d 100644
--- a/docs/hero_mdbook_fullvm.md
+++ b/docs/hero_mdbook_fullvm.md
@@ -108,9 +108,9 @@ hero mdbook -u https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/herosc
 
 > Note: In both cases, make sure to replace **bookname** by the name of your book, e.g. test.
 
-To see the mdbook online on a local browser (via the file **index.html**), run the following command and open a browser with the URL **localhost:5173**:
+To see the mdbook online on a local browser (via the file **index.html**), run the following command and open a browser with the URL **localhost:5173**. Make sure to replace `<book_name>` with the name of the book.
 ```
-pushd /root/hero/www/info/tfgrid/;  python3 -m http.server 5173; popd; 
+pushd /root/hero/www/info/<book_name>/;  python3 -m http.server 5173; popd; 
 ```
 
 ## Troubleshooting