diff --git a/README.md b/README.md
index 82ea385..9fb4969 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 [![License](http://img.shields.io/badge/license-LGPL-blue.svg?style=flat)](https://www.gnu.org/licenses/lgpl-3.0.en.html#content)
 [![Clojars](https://img.shields.io/badge/clojars-0.0.20--SNAPSHOT-blue.svg?style=flat)](https://clojars.org/clojurefx/versions/0.0.20-SNAPSHOT)
 [![Gratipay](//img.shields.io/gratipay/zilti.svg?style=flat)](//gratipay.com/zilti)
-[![Flattr this](//api.flattr.com/button/flattr-badge-small.png)](https://flattr.com/submit/auto?user_id=zilti&url=https%3A%2F%2Fbitbucket.org%2Fzilti%2Fclojurefx)
+[![Flattr this](//api.flattr.com/button/flattr-badge-large.png)](https://flattr.com/submit/auto?user_id=zilti&url=https%3A%2F%2Fbitbucket.org%2Fzilti%2Fclojurefx)
 
 # ClojureFX