diff --git a/README.rst b/README.rst
index dbc242b..170c72e 100644
--- a/README.rst
+++ b/README.rst
@@ -6,7 +6,7 @@ A REST API for Tryton Models
 .. image:: https://travis-ci.org/openlabs/tryton-restful.png?branch=develop
   :target: https://travis-ci.org/openlabs/tryton-restful
 
-.. image:: https://coveralls.io/repos/openlabs/tryton-restful/badge.png
+.. image:: https://coveralls.io/repos/openlabs/tryton-restful/badge.png?branch=develop
   :target: https://coveralls.io/r/openlabs/tryton-restful
 
 Installation