diff --git a/TODO.md b/TODO.md
index d0aa26cf..981deef1 100644
--- a/TODO.md
+++ b/TODO.md
@@ -92,3 +92,4 @@ notes
 - http://blogs.msdn.com/b/oldnewthing/archive/2004/03/29/101121.aspx on accelerators
 
 - group and tab should act as if they have no child if the child is hidden
+on windows