diff --git a/init.el b/init.el
index 0c2d549..97925dd 100644
--- a/init.el
+++ b/init.el
@@ -657,7 +657,7 @@
 With given ARG, display files in `db/important-document-path’."
   (interactive "p")
   (require 'helm-bookmark)
-  (require 'helm-for-files)
+  (require 'helm-for-files)             ; for helm-source-recentf
   (helm :sources (list
                   (helm-make-source "Frequently Used" 'helm-source-sync
                     :candidates (mapcar #'(lambda (entry)