diff --git a/doc/org-manual.org b/doc/org-manual.org
index 3c16edc4a..f6ad80331 100644
--- a/doc/org-manual.org
+++ b/doc/org-manual.org
@@ -6065,17 +6065,6 @@ schedule an item:[fn:65]
   ~org-log-reschedule~, take a note when changing an existing
   scheduling time[fn:67].
 
-- {{{kbd(C-c C-x C-k)}}} (~org-mark-entry-for-agenda-action~) ::
-
-  #+kindex: C-c C-x C-k
-  #+kindex: k a
-  #+kindex: k s
-  #+findex: org-mark-entry-for-agenda-action
-  Mark the current entry for agenda action.  After you have marked the
-  entry like this, you can open the agenda or the calendar to find an
-  appropriate date.  With point on the selected date, press {{{kbd(k
-  s)}}} or {{{kbd(k d)}}} to schedule the marked item.
-
 - {{{kbd(C-c / d)}}} (~org-check-deadlines~) ::
 
   #+kindex: C-c / d