diff --git a/readme.md b/readme.md
index 02602e0..bd8c72a 100644
--- a/readme.md
+++ b/readme.md
@@ -2,6 +2,7 @@ Form
 ========
 
 [![Code Climate](https://codeclimate.com/github/adamwathan/form/badges/gpa.svg)](https://codeclimate.com/github/adamwathan/form)
+[![Coverage Status](https://coveralls.io/repos/adamwathan/form/badge.svg?branch=master)](https://coveralls.io/r/adamwathan/form?branch=master)
 
 Boring name for a boring package. Builds form HTML with a fluent-ish, hopefully intuitive syntax.