REST "Delete Folder by Id" API document error

I found New API "Delete Folder by Id" document error.
http://developers.marketo.com/documentation/asset-api/delete-folder-by-id

Wrong
URL: <REST API Endpoint URL>/asset/folder/{id}/delete.json

Correct
URL: <REST API Endpoint URL>/asset/v1/folder/{id}/delete.json
Insert "/v1"