diff --git a/README.md b/README.md
index de8110a..cefc014 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,7 @@ Injector - Python dependency injection framework, inspired by Guice
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 [![image](https://secure.travis-ci.org/alecthomas/injector.svg?branch=master)](https://travis-ci.org/alecthomas/injector)
+[![Coverage Status](https://coveralls.io/repos/github/alecthomas/injector/badge.svg?branch=master)](https://coveralls.io/github/alecthomas/injector?branch=master)
 
 Introduction
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