diff --git a/README.md b/README.md
index 34d9b05..4d1ce77 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,9 @@ sdk install java 8.0.202-zulu
 ### Install dependencies (apps, fonts, ...) with Brew
 `brew bundle`
 
+### Install asciidoctor-pdf
+`sudo gem install -n /usr/local/bin asciidoctor-pdf --pre`
+
 ### Install Oh My Zsh and some cool dependencies
 ```
 sh -c "$(curl -fsSL https://raw.githubusercontent.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"