diff --git a/README.mkd b/README.mkd
index cdef8cd..ca8eacd 100644
--- a/README.mkd
+++ b/README.mkd
@@ -2,6 +2,7 @@ go-sqlite3
 ==========
 
 [![Build Status](https://travis-ci.org/mattn/go-sqlite3.png?branch=master)](https://travis-ci.org/mattn/go-sqlite3)
+[![Coverage Status](https://coveralls.io/repos/mattn/go-sqlite3/badge.png?branch=master)](https://coveralls.io/r/mattn/go-sqlite3?branch=master)
 
 DESCRIPTION
 -----------