diff --git a/docs/documentation_index.md b/docs/documentation_index.md
index 97292293..56fd6e5a 100644
--- a/docs/documentation_index.md
+++ b/docs/documentation_index.md
@@ -19,6 +19,7 @@ To test your changes locally, you need to install **Ruby** and its dependencies
 - In your home-assistant.io root directory, run `$ bundle` to install the gems you need.
 
 Shortcut for Fedora: `$ sudo dnf -y install gcc-c++ ruby ruby-devel rubygem-bundler rubygem-json && bundle`
+Shortcut for Debian/Ubuntu: `$ sudo apt-get install ruby ruby-dev ruby-bundler ruby-json && bundle`
 
 Then you can work on the documentation: