diff --git a/xenomorph/README.md b/xenomorph/README.md
index 2b06c7b0..0bb3c929 100644
--- a/xenomorph/README.md
+++ b/xenomorph/README.md
@@ -1,4 +1,4 @@
-# xenomorph
+# xenomorph [![Build Status](https://travis-ci.org/mbutterick/xenomorph.svg?branch=master)](https://travis-ci.org/mbutterick/xenomorph)
 
 Racket library for binary encoding & decoding. Based on [restructure](https://github.com/foliojs/restructure).