diff --git a/.coveralls.yml b/.coveralls.yml
new file mode 100644
index 0000000..3665122
--- /dev/null
+++ b/.coveralls.yml
@@ -0,0 +1 @@
+repo_secret_token: oybJW5C1ZdCRqiC1Ivn4mDjOqNdYipXts
diff --git a/Gemfile b/Gemfile
index a20ee28..9941cbd 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,3 +2,4 @@ source "http://rubygems.org"
 
 # Specify your gem's dependencies in configus.gemspec
 gemspec
+gem 'coveralls', require: false
diff --git a/README.md b/README.md
index 8caa268..19d7fae 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,7 @@
 Configus helps you easily manage environment specific settings
 
 [![Build Status](https://secure.travis-ci.org/kaize/configus.png)](http://travis-ci.org/kaize/configus)
+[![Coverage Status](https://coveralls.io/repos/kaize/configus/badge.png?branch=master)](https://coveralls.io/r/kaize/configus/)
 
 ## Installing
 
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 5b5118b..e9cdc3c 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,3 +1,5 @@
 require 'configus'
 require 'bundler/setup'
 
+require 'coveralls'
+Coveralls.wear!('rails')