diff --git a/readme.md b/readme.md
index fded4ee..4c86bf7 100644
--- a/readme.md
+++ b/readme.md
@@ -1,6 +1,7 @@
 # complete
 
 [![Build Status](https://travis-ci.org/posener/complete.svg?branch=master)](https://travis-ci.org/posener/complete)
+[![codecov](https://codecov.io/gh/posener/complete/branch/master/graph/badge.svg)](https://codecov.io/gh/posener/complete)
 
 WIP