diff --git a/.gitignore b/.gitignore
index 80edba87..c48d5228 100644
--- a/.gitignore
+++ b/.gitignore
@@ -41,3 +41,4 @@ ToDo.md
 spec/params_entity_spec.rb
 vendor/bundle/
 spec/swagger_v2/x-dummy.rb
+coverage/
diff --git a/Gemfile b/Gemfile
index a8dc96a9..e47fb6ec 100644
--- a/Gemfile
+++ b/Gemfile
@@ -26,6 +26,7 @@ group :development, :test do
   gem 'rubocop', '~> 0.40'
 end
 group :test do
+  gem 'coveralls', require: false
   gem 'grape-entity'
   gem 'grape-swagger-entity'
   gem 'ruby-grape-danger', '~> 0.1.1', require: false
diff --git a/README.md b/README.md
index 91742d3b..55b106b0 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,6 @@
 [![Gem Version](https://badge.fury.io/rb/grape-swagger.svg)](http://badge.fury.io/rb/grape-swagger)
 [![Build Status](https://travis-ci.org/ruby-grape/grape-swagger.svg?branch=master)](https://travis-ci.org/ruby-grape/grape-swagger)
+[![Coverage Status](https://coveralls.io/repos/github/ruby-grape/grape-swagger/badge.svg)](https://coveralls.io/github/ruby-grape/grape-swagger)
 [![Dependency Status](https://gemnasium.com/ruby-grape/grape-swagger.svg)](https://gemnasium.com/ruby-grape/grape-swagger)
 [![Code Climate](https://codeclimate.com/github/ruby-grape/grape-swagger.svg)](https://codeclimate.com/github/ruby-grape/grape-swagger)
 
diff --git a/coveralls.yml b/coveralls.yml
new file mode 100644
index 00000000..91600595
--- /dev/null
+++ b/coveralls.yml
@@ -0,0 +1 @@
+service_name: travis-ci
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index be1acabb..8b7e0be3 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,9 +1,13 @@
+require 'coveralls'
+Coveralls.wear!
+
 $LOAD_PATH.unshift File.expand_path('../../lib', __FILE__)
 
 MODEL_PARSER = ENV.key?('MODEL_PARSER') ? ENV['MODEL_PARSER'].to_s.downcase.sub('grape-swagger-', '') : 'mock'
 
 require 'grape'
 require 'grape-swagger'
+
 Dir[File.join(Dir.getwd, 'spec/support/*.rb')].each { |f| require f }
 require "grape-swagger/#{MODEL_PARSER}" if MODEL_PARSER != 'mock'
 require File.join(Dir.getwd, "spec/support/model_parsers/#{MODEL_PARSER}_parser.rb")