diff --git a/TODO b/TODO
index 4457b232ff..a16bb74ea8 100644
--- a/TODO
+++ b/TODO
@@ -128,6 +128,8 @@ Deprecations and removals:
 
 Features:
 
+* journald: log pidfid as another field, i.e. _PIDFDID=
+
 * systemd-nspawn: something like --volatile= but that isn't volatile, but
   stores the data in some separate dir on disk. Usecase: keep always up-to-date
   DDIs of some OS in your home dir, but combine its /usr/ with a locally