diff --git a/packages/babel-register/README.md b/packages/babel-register/README.md
index c19e260c40..413e7a6349 100644
--- a/packages/babel-register/README.md
+++ b/packages/babel-register/README.md
@@ -66,7 +66,10 @@ require("babel-register")({
 
   // Setting this will remove the currently hooked extensions of .es6, `.es`, `.jsx`
   // and .js so you'll have to add them back if you want them to be used again.
-  extensions: [".es6", ".es", ".jsx", ".js"]
+  extensions: [".es6", ".es", ".jsx", ".js"],
+
+  // Setting this to false will disable the cache.
+  cache: true
 });
 ```