diff --git a/README.rst b/README.rst
index 88d72f6..e49496b 100644
--- a/README.rst
+++ b/README.rst
@@ -13,6 +13,10 @@ Introduction
     :target: https://github.com/adafruit/Adafruit_CircuitPython_framebuf/actions/
     :alt: Build Status
 
+.. image:: https://img.shields.io/badge/code%20style-black-000000.svg
+    :target: https://github.com/psf/black
+    :alt: Code Style: Black
+
 CircuitPython framebuf module, based on the Python framebuf module.
 
 Dependencies