diff --git a/org-agenda-ng.el b/org-agenda-ng.el
index e521096..3d331cd 100644
--- a/org-agenda-ng.el
+++ b/org-agenda-ng.el
@@ -305,6 +305,8 @@ With KEYWORDS, return non-nil if its keyword is one of KEYWORDS."
 
 (defun org-agenda-ng--date-p (type &optional comparator target-date)
   ;; TODO: Make this a macro so we don't have to quote comparator and test it for every item.
+
+  ;; TODO: Make separate date, scheduled, deadline macros.
   "Return non-nil if current heading has a date property of TYPE.
 TYPE should be a keyword symbol, like :scheduled or :deadline.