diff --git a/doc/design/caching_database.mdwn b/doc/design/caching_database.mdwn
index 5223fa9337..6e6d48f65d 100644
--- a/doc/design/caching_database.mdwn
+++ b/doc/design/caching_database.mdwn
@@ -1,6 +1,7 @@
 * [[metadata]] for views
 * [direct mode mappings scale badly with thousands of identical files](/bugs/__34__Adding_4923_files__34___is_really_slow)
 * [[bugs/incremental_fsck_should_not_use_sticky_bit]]
+* [[todo/wishlist:_pack_metadata_in_direct_mode]]
 
 What do all these have in common? They could all be improved by
 using some kind of database to locally store the information in an