diff --git a/menu/m_sub.c b/menu/m_sub.c
index 37529a0..a055245 100644
--- a/menu/m_sub.c
+++ b/menu/m_sub.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 1998-2004,2010 Free Software Foundation, Inc.              *
+ * Copyright 2020,2021 Thomas E. Dickey                                     *
+ * Copyright 1998-2009,2010 Free Software Foundation, Inc.                  *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -37,19 +38,19 @@
 
 #include "menu.priv.h"
 
-MODULE_ID("$Id: m_sub.c,v 1.12 2010/01/23 21:20:11 tom Exp $")
+MODULE_ID("$Id: m_sub.c,v 1.16 2021/06/17 21:20:30 tom Exp $")
 
 /*---------------------------------------------------------------------------
-|   Facility      :  libnmenu  
+|   Facility      :  libnmenu
 |   Function      :  int set_menu_sub(MENU *menu, WINDOW *win)
-|   
+|
 |   Description   :  Sets the subwindow of the menu.
 |
 |   Return Values :  E_OK           - success
 |                    E_POSTED       - menu is already posted
 +--------------------------------------------------------------------------*/
-NCURSES_EXPORT(int)
-set_menu_sub(MENU * menu, WINDOW *win)
+MENU_EXPORT(int)
+set_menu_sub(MENU *menu, WINDOW *win)
 {
   T((T_CALLED("set_menu_sub(%p,%p)"), (void *)menu, (void *)win));
 
@@ -81,15 +82,15 @@
 }
 
 /*---------------------------------------------------------------------------
-|   Facility      :  libnmenu  
+|   Facility      :  libnmenu
 |   Function      :  WINDOW* menu_sub(const MENU *menu)
-|   
+|
 |   Description   :  Returns a pointer to the subwindow of the menu
 |
 |   Return Values :  NULL on error, otherwise a pointer to the window
 +--------------------------------------------------------------------------*/
-NCURSES_EXPORT(WINDOW *)
-menu_sub(const MENU * menu)
+MENU_EXPORT(WINDOW *)
+menu_sub(const MENU *menu)
 {
   const MENU *m = Normalize_Menu(menu);