diff --git a/TODO b/TODO
index 584646b42..3bf442b7d 100644
--- a/TODO
+++ b/TODO
@@ -47,6 +47,8 @@ Fedora 19:
 
 Features:
 
+* snapshots really should be isolatable, but currently aren't.
+
 * seems that when we follow symlinks to units we prefer the symlink
   destination path over /etc and /usr. We shouldn't do that. Instead
   /etc should always override /run+/usr and also any symlink