diff --git a/.travis.yml b/.travis.yml
index 2ff2c09e..6b8a6384 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,11 +5,11 @@ env: # These should match the tox env list
     - TOXENV=py33
     - TOXENV=py34
     - TOXENV=pypy
-install: pip install tox --use-mirrors
+install: pip install coveralls tox --use-mirrors
 script: tox
-
-
 # Special snowflake.  Our tests depend on making real commits.
 before_install:
   - git config --global user.name "Travis CI"
   - git config --global user.email "user@example.com"
+after_success:
+    - coveralls
diff --git a/README.md b/README.md
index f4b4be26..d04bc17d 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,5 @@
 [![Build Status](https://travis-ci.org/pre-commit/pre-commit.svg?branch=master)](https://travis-ci.org/pre-commit/pre-commit)
+[![Coverage Status](https://img.shields.io/coveralls/pre-commit/pre-commit.svg?branch=master)](https://coveralls.io/r/pre-commit/pre-commit)
 
 pre-commit
 ==========