diff --git a/usr.bin/calendar/Makefile b/usr.bin/calendar/Makefile
index 72aa9793dd5c..50f5f761da42 100644
--- a/usr.bin/calendar/Makefile
+++ b/usr.bin/calendar/Makefile
@@ -1,12 +1,18 @@
-#	$NetBSD: Makefile,v 1.14 2009/04/14 22:15:17 lukem Exp $
+#	$NetBSD: Makefile,v 1.15 2020/12/25 07:00:52 dholland Exp $
 #	@(#)Makefile	8.1 (Berkeley) 6/6/93
 
 .include <bsd.own.mk>
 
+CALENDARS=	birthday christian computer history holiday judaic \
+		lotr music netbsd usholiday
+
 PROG=	calendar
+
 .if ${MKSHARE} != "no"
 FILESDIR=/usr/share/calendar
-FILES!= echo ${.CURDIR}/calendars/calendar.*
+.for _C_ in ${CALENDARS}
+FILES+=${.CURDIR}/calendars/calendar.${_C_}
+.endfor
 .endif
 
 .include <bsd.prog.mk>