diff --git a/README.md b/README.md
index ca3902f..2fb471f 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,8 @@ A Ruby wrapper for the [ScraperWiki](https://scraperwiki.com/) [API](https://scr
 
 [![Build Status](https://secure.travis-ci.org/opennorth/scraperwiki-api-ruby.png)](http://travis-ci.org/opennorth/scraperwiki-api-ruby)
 [![Dependency Status](https://gemnasium.com/opennorth/scraperwiki-api-ruby.png)](https://gemnasium.com/opennorth/scraperwiki-api-ruby)
-[![Code Climate](https://codeclimate.com/badge.png)](https://codeclimate.com/github/opennorth/scraperwiki-api-ruby)
+[![Coverage Status](https://coveralls.io/repos/opennorth/scraperwiki-api-ruby/badge.png?branch=master)](https://coveralls.io/r/opennorth/scraperwiki-api-ruby)
+[![Code Climate](https://codeclimate.com/github/opennorth/scraperwiki-api-ruby.png)](https://codeclimate.com/github/opennorth/scraperwiki-api-ruby)
 
 ## Installation
 
diff --git a/scraperwiki-api.gemspec b/scraperwiki-api.gemspec
index a98434b..5d2827c 100644
--- a/scraperwiki-api.gemspec
+++ b/scraperwiki-api.gemspec
@@ -20,4 +20,5 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency('httparty', '~> 0.10.0')
   s.add_development_dependency('rspec', '~> 2.10')
   s.add_development_dependency('rake')
+  s.add_development_dependency('coveralls')
 end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index d0b8dfb..4865165 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,3 +1,7 @@
 require 'rubygems'
+
+require 'coveralls'
+Coveralls.wear!
+
 require 'rspec'
 require File.dirname(__FILE__) + '/../lib/scraperwiki-api'