diff --git a/TODO b/TODO
index 4db97d9..21c5a97 100644
--- a/TODO
+++ b/TODO
@@ -2,6 +2,9 @@
 #
 # This is by no means a complete list.
 
+Misc
+  - Deep cloning level for util.clone()
+
 Property Keywords
   - Restrictions; throw exceptions when unknown keywords are used
   - public (default)