diff --git a/TODO.txt b/TODO.txt
index 6d8bd25..4f40d2e 100644
--- a/TODO.txt
+++ b/TODO.txt
@@ -3,3 +3,4 @@ TODO:
 - add localization support
 - add support for unregistering ores via world path file
 - change API method names to "register_[replace/remove]_*"
+- use single json file for cleaning all types