diff --git a/docs/index.md b/docs/index.md
index 98c665b4f7..5dac9ff173 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -1569,7 +1569,7 @@ mocha.setup({
 // Use "tdd" interface, ignore leaks, and force all tests to be asynchronous
 mocha.setup({
   ui: 'tdd',
-  ignoreLeaks: true,
+  checkLeaks: false, // default
   asyncOnly: true
 });
 ```