diff --git a/Heroku.textile b/Heroku.textile
index 7a3780d..c3b34c6 100644
--- a/Heroku.textile
+++ b/Heroku.textile
@@ -13,6 +13,7 @@ Installing Tracks 2.0 or newer on Heroku is fairly simple, here are the steps to
 </code>
 # Add the created site.yml with @git add config/site.yml@ and commit everything with @git -a@
 # Create a Heroku app on the Bamboo stack with @heroku create {NAME} --stack bamboo-ree-1.8.7@
+# Run @heroku config:add BUNDLE_WITHOUT="development:test:selenium"@ so that only gems needed for production are installed on Heroku
 # Push the commit with @git push heroku master@
 # Run the migrations on Heroku with @heroku run rake db:migrate@
 # Open the application with @heroku open@
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