diff --git a/antora-playbook.yml b/antora-playbook.yml
index ea133ac..8a83162 100644
--- a/antora-playbook.yml
+++ b/antora-playbook.yml
@@ -1,7 +1,7 @@
 site:
   title: An Elixir, Phoenix and Ash Beginner's Guide
   url: https://elixir-phoenix-ash.com
-  start_page: book::ROOT:index.adoc
+  start_page: book:index.adoc
 content:
   sources:
   - url: https://github.com/wintermeyer/elixir-phoenix-ash.git