diff --git a/TODO.md b/TODO.md
index 1be14dd..2768f59 100644
--- a/TODO.md
+++ b/TODO.md
@@ -6,6 +6,7 @@
 
 - [ ] Switch to SQLite
 - [ ] Files search doesn't work
+- [ ] Get rid of unsigned integers
 - [ ] Check registration
 - [ ] Common functions for both DBs, only db_query should be different
 - [ ] Close the DB correctly in any quit case (also by SIGTERM)