diff --git a/README.md b/README.md
index cb8ac75..d52c785 100644
--- a/README.md
+++ b/README.md
@@ -2,3 +2,5 @@
 # Wutta Demo
 
 This is a starter Python project.
+
+[![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)