diff --git a/book/index.adoc b/book/index.adoc
index 0ced3d7..951bf59 100644
--- a/book/index.adoc
+++ b/book/index.adoc
@@ -130,7 +130,7 @@ use flake "git+https://code.oliverdavies.uk/opdavies/dev-shells#php84"
 
 This will install PHP 8.4, Composer and Phpactor without needing to create a bespoke `flake.nix`.
 
-[NOTE]
+[TIP]
 ====
 If you're referencing a GitHub repository, you can use the shorter `github:username/repo` format instead of the full repository URL.
 ====