[from now] 2014/08/15 00:02:02

diff --git a/Sinatra Setup on MacOSX.md b/Sinatra Setup on MacOSX.md
index ad897d6..11afca9 100644
--- a/Sinatra Setup on MacOSX.md
+++ b/Sinatra Setup on MacOSX.md
@@ -123,6 +123,10 @@ $ foreman start

 # Deploy to Heroku

+```shell
+$ brew install heroku-toolbelt
+```
+
 // TODO: write details about deploy

 > heroku create