diff --git a/todo b/todo
index 750ca12..663095c 100644
--- a/todo
+++ b/todo
@@ -2,4 +2,5 @@
 - [x] Immediate head chop after dequeue
 - [x] Thread.yields
 - [ ] Sleep option
-- [ ] Use linked list for queues (increase performance)
\ No newline at end of file
+- [ ] Use linked list for queues (increase performance)
+- [ ] shutdown option
\ No newline at end of file