diff --git a/README.md b/README.md
index c4adde4..5221481 100644
--- a/README.md
+++ b/README.md
@@ -3,3 +3,4 @@
 PKIGo (kee-go) is a simple PKI library for Go applications.
 
 [![wercker status](https://app.wercker.com/status/c711977b5eb122a2e3b1e4a58b122f18/s "wercker status")](https://app.wercker.com/project/bykey/c711977b5eb122a2e3b1e4a58b122f18)
+[![Coverage Status](https://coveralls.io/repos/mefellows/pkigo/badge.svg?branch=HEAD&service=github)](https://coveralls.io/github/mefellows/pkigo?branch=HEAD)