diff --git a/TODO.markdown b/TODO.markdown
index 1d7006f4..1ea01b78 100644
--- a/TODO.markdown
+++ b/TODO.markdown
@@ -10,6 +10,7 @@
 * copy srv/mx sorting from base library
 * allow multiple edns0 options to exist in the record when converting
   from/to wireformat
+* NSEC3 support propper in the zone structure(s)
 
 ## Nice to have