diff --git a/.coveralls.yml b/.coveralls.yml
new file mode 100644
index 0000000..6e64999
--- /dev/null
+++ b/.coveralls.yml
@@ -0,0 +1 @@
+service_name: travis-ci
\ No newline at end of file
diff --git a/README.md b/README.md
index 5ef6d72..1dc4300 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,5 @@
 [![Build Status](https://travis-ci.org/matfiz/national-ids-validator.svg?branch=master)](https://travis-ci.org/matfiz/national-ids-validator)
+[![Coverage Status](https://coveralls.io/repos/matfiz/national-ids-validator/badge.png)](https://coveralls.io/r/matfiz/national-ids-validator)
 
 National IDs Validator for Ruby on Rails (Active Model)
 ======================
diff --git a/national-ids-validator.gemspec b/national-ids-validator.gemspec
index 9c74f1c..d39bac4 100644
--- a/national-ids-validator.gemspec
+++ b/national-ids-validator.gemspec
@@ -24,4 +24,5 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'rspec', "~> 3.0"
   spec.add_development_dependency 'pry', ">0"
   spec.add_development_dependency 'activemodel', "~> 4.0.0"
+  spec.add_development_dependency "coveralls"
 end
\ No newline at end of file
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 22d93ef..3f4b474 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -2,6 +2,8 @@
 require 'rspec'
 require 'active_model'
 require 'pry'
+require 'coveralls'
+Coveralls.wear!
 
 $LOAD_PATH.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
 $LOAD_PATH.unshift(File.dirname(__FILE__))