diff --git a/README.md b/README.md
index 82e6467..e81f7b4 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,6 @@
 [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/mlund/template-for-supporting-information/HEAD)
 [![CC BY 4.0][cc-by-shield]][cc-by]
+[![ruff](https://github.com/mlund/template-for-supporting-information/actions/workflows/ruff.yml/badge.svg)](https://github.com/mlund/template-for-supporting-information/actions/workflows/ruff.yml)
 
 [cc-by]: http://creativecommons.org/licenses/by/4.0/
 [cc-by-shield]: https://img.shields.io/badge/License-CC%20BY%204.0-lightgrey.svg