diff --git a/README.rst b/README.rst
index c2577d9..55400f1 100644
--- a/README.rst
+++ b/README.rst
@@ -3,7 +3,9 @@ pre-commit-check-chameleon
 
 Purpose: Check for syntax and accessibility misuse in Chameleon templates.
 
-Usage in ``.pre-commit-config.yaml``::
+Usage in ``.pre-commit-config.yaml``:
+
+.. code:: yaml
 
     - repo: https://github.com/minddistrict/pre-commit-check-chameleon
       rev: 1.0