diff --git a/README.md b/README.md
index 9bb0860d..b3427aba 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,7 @@ benchmark
 =========
 [![Build Status](https://travis-ci.org/google/benchmark.svg?branch=master)](https://travis-ci.org/google/benchmark)
 [![Build status](https://ci.appveyor.com/api/projects/status/u0qsyp7t1tk7cpxs/branch/master?svg=true)](https://ci.appveyor.com/project/google/benchmark/branch/master)
+[![Coverage Status](https://coveralls.io/repos/google/benchmark/badge.svg)](https://coveralls.io/r/google/benchmark)
 
 A library to support the benchmarking of functions, similar to unit-tests.