diff --git a/README.md b/README.md
index 458b2a8..8b375f5 100644
--- a/README.md
+++ b/README.md
@@ -107,7 +107,7 @@ git clone http://github.com/errbit/errbit.git
 gem install heroku
 heroku create example-errbit --stack cedar
 heroku addons:add mongohq:free
-cp config/mongoid.mongohq.yml config/mongoid.yml
+cp -f config/mongoid.mongohq.yml config/mongoid.yml
 git add -f config/mongoid.yml
 git commit -m "Added mongoid config for MongoHQ"
 heroku addons:add sendgrid:starter
--
libgit2 0.21.2