diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 [![Identifier](https://img.shields.io/badge/doi-10.5438%2F8gb0--v673-fca709.svg)](https://doi.org/10.5438/8gb0-v673)
-[![Build Status](https://travis-ci.org/datacite/lupo.svg?branch=master)](https://travis-ci.org/datacite/lupo) [![Docker Build Status](https://img.shields.io/docker/build/datacite/lupo.svg)](https://hub.docker.com/r/datacite/lupo/) [![Maintainability](https://api.codeclimate.com/v1/badges/dddd95f9f6f354b7af93/maintainability)](https://codeclimate.com/github/datacite/lupo/maintainability) [![Test Coverage](https://api.codeclimate.com/v1/badges/dddd95f9f6f354b7af93/test_coverage)](https://codeclimate.com/github/datacite/lupo/test_coverage) ![Discourse users](https://img.shields.io/discourse/https/www.pidforum.org/users)
+[![Build Status](https://travis-ci.org/datacite/lupo.svg?branch=master)](https://travis-ci.org/datacite/lupo) [![Docker Build Status](https://img.shields.io/docker/build/datacite/lupo.svg)](https://hub.docker.com/r/datacite/lupo/) [![Maintainability](https://api.codeclimate.com/v1/badges/dddd95f9f6f354b7af93/maintainability)](https://codeclimate.com/github/datacite/lupo/maintainability) [![Test Coverage](https://api.codeclimate.com/v1/badges/dddd95f9f6f354b7af93/test_coverage)](https://codeclimate.com/github/datacite/lupo/test_coverage) [![Discourse users](https://img.shields.io/discourse/https/www.pidforum.org/users)](https://www.pidforum.org/c/pid-developers)
 
 # DataCite REST API