diff --git a/TODO.txt b/TODO.txt
index e0dd4bf..89f5e98 100644
--- a/TODO.txt
+++ b/TODO.txt
@@ -2,3 +2,4 @@
 TODO:
 - update world file when chat commands are used
 - update player inventories when items are replaced
+- fix top nodes disappearing with /replace_node command