diff --git a/README.md b/README.md
index 098e68514c..ec7bdb4337 100644
--- a/README.md
+++ b/README.md
@@ -155,6 +155,10 @@ dummy-variable-rgx = "^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$"
 
 # Assume Python 3.10.
 target-version = "py310"
+
+[tool.ruff.mccabe]
+# Unlike Flake8, default to a complexity level of 10.
+max-complexity = 10
 ```
 
 As an example, the following would configure Ruff to: (1) avoid checking for line-length