diff --git a/README.md b/README.md
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 hmac-sha1
 =========
 
+[![Build Status](https://travis-ci.org/Akagi201/hmac-sha1.svg)](https://travis-ci.org/Akagi201/hmac-sha1)
+
 Standalone implementation of `HMAC()` + `EVP_sha1()` in `OpenSSL`