diff --git a/readme.md b/readme.md
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@@ -45,3 +45,5 @@ Graph API.
    Hackage.
 
  * [There is no Fork: An Abstraction for Efficient, Concurrent, and Concise Data Access](http://community.haskell.org/~simonmar/papers/haxl-icfp14.pdf), our paper on Haxl, accepted for publication at ICFP'14.
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+[![Build Status](https://travis-ci.org/facebook/Haxl.svg?branch=master)](https://travis-ci.org/facebook/Haxl)