diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..9ffdd3d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+.DS_Store
+.coveralls.yml
+node_modules/
diff --git a/.travis.yml b/.travis.yml
index 77e1675..2005498 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,4 +5,4 @@ node_js:
   - "1.0"
   - "1.6"
 sudo: false
-script: "npm test"
+script: "npm run test-cov"
diff --git a/Makefile b/Makefile
index b15ce0c..61ac036 100644
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,14 @@ docs:
 	lib/*.js
 
 test:
-	@./node_modules/.bin/mocha \
+	@NODE_ENV=test ./node_modules/.bin/mocha \
 		--reporter $(REPORTER)
 
-.PHONY: all test docs
+test-cov:
+	@NODE_ENV=test ./node_modules/.bin/istanbul cover \
+	./node_modules/.bin/_mocha --report lcovonly -- \
+	-R $(REPORTER) && cat ./coverage/lcov.info | \
+	./node_modules/coveralls/bin/coveralls.js && \
+	rm -rf ./coverage
+
+.PHONY: all test test-cov docs
diff --git a/README.md b/README.md
index 1644841..16673f3 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,7 @@ Express.js middleware abstracting error vs success responses.
 [![NPM Version][npm-image]][npm-url]
 [![NPM Downloads][downloads-image]][downloads-url]
 [![Build][travis-image]][travis-url]
+[![Coverage Status][coveralls-image]][coveralls-url]
 
 ### INSTALLING
 
@@ -257,3 +258,5 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 [downloads-url]: https://npmjs.org/package/express-responder
 [travis-image]: https://img.shields.io/travis/bigmountainideas/express-responder/master.svg
 [travis-url]: https://travis-ci.org/bigmountainideas/express-responder
+[coveralls-image]: https://coveralls.io/repos/bigmountainideas/express-responder/badge.svg?branch=master
+[coveralls-url]: https://coveralls.io/r/bigmountainideas/express-responder?branch=master
diff --git a/package.json b/package.json
index 24e5f30..155d08d 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,8 @@
   "description": "Express.js middleware abstracting error vs success responses.",
   "main": "index.js",
   "scripts": {
-    "test": "make test"
+    "test": "make test",
+    "test-cov": "make test-cov"
   },
   "repository": {
     "type": "git",
@@ -34,7 +35,8 @@
     "body-parser": "^1.12.3",
     "coveralls": "^2.11.2",
     "mocha-lcov-reporter": "0.0.2",
-    "jade": "^1.9.2"
+    "jade": "^1.9.2",
+    "istanbul": "^0.3.13"
   },
   "dependencies": {
     "errors": "^0.2.0",