diff --git a/README.md b/README.md
index 03f40f0..8b75fd7 100644
--- a/README.md
+++ b/README.md
@@ -62,6 +62,8 @@ You'll need to install various tools to access important but optional features.
 
 ### KindleGen
 
+#### Windows / macOS KindleGen
+
 On Windows/macOS, install [Kindle Previewer](https://www.amazon.com/Kindle-Previewer/b?ie=UTF8&node=21381691011) and `kindlegen` will be autodetected from it.
 
 On other OS or if you have issues detecting it, refer to the wiki: https://github.com/ciromattia/kcc/wiki/Installation#kindlegen