(calendar-mode-hook): Declare it.

diff --git a/lisp/calendar/calendar.el b/lisp/calendar/calendar.el
index fa7a68acd3081e27ee95901448fe96adaf5ef1e6..18037e9b79425175bed816126acaf250e877bb7a 100644 (file)
--- a/lisp/calendar/calendar.el
+++ b/lisp/calendar/calendar.el
@@ -301,6 +301,11 @@ calendar."
   :type 'boolean
   :group 'holidays)
 
+(defcustom calendar-mode-hook nil
+  "Hook run when entering `calendar-mode'."
+  :type 'hook
+  :group 'calendar-hooks)
+
 ;;;###autoload
 (defcustom calendar-load-hook nil
   "List of functions to be called after the calendar is first loaded.