Index: head/usr.bin/less/Makefile
===================================================================
--- head/usr.bin/less/Makefile	(revision 316978)
+++ head/usr.bin/less/Makefile	(revision 316979)
@@ -1,20 +1,21 @@
 # $FreeBSD$
 
 PROG=	less
 SRCS=	main.c screen.c brac.c ch.c charset.c cmdbuf.c command.c cvt.c \
 	decode.c edit.c filename.c forwback.c help.c ifile.c input.c \
 	jump.c line.c linenum.c lsystem.c mark.c optfunc.c option.c \
 	opttbl.c os.c output.c pattern.c position.c prompt.c search.c \
 	signal.c tags.c ttyin.c version.c
 SCRIPTS=lesspipe.sh zless.sh
 SCRIPTSNAME_lesspipe.sh=lesspipe.sh
 LIBADD=	ncursesw
 LINKS=	${BINDIR}/less ${BINDIR}/more \
 	${BINDIR}/zless ${BINDIR}/bzless \
 	${BINDIR}/zless ${BINDIR}/xzless \
-	${BINDIR}/zless ${BINDIR}/lzless
+	${BINDIR}/zless ${BINDIR}/lzless \
+	${BINDIR}/zless ${BINDIR}/zstless
 MLINKS=	less.1 more.1
 CLEANFILES= less.1
 
 .include "Makefile.common"
 .include <bsd.prog.mk>
Index: head/usr.bin/less/lesspipe.sh
===================================================================
--- head/usr.bin/less/lesspipe.sh	(revision 316978)
+++ head/usr.bin/less/lesspipe.sh	(revision 316979)
@@ -1,25 +1,28 @@
 #! /bin/sh
 # ex:ts=8
 
 # $FreeBSD$
 
 case "$1" in
 	*.zip)
 		exec unzip -c "$1" 2>/dev/null
 		;;
 	*.Z)
 		exec uncompress -c "$1"	2>/dev/null
 		;;
 	*.gz)
 		exec gzip -d -c "$1"	2>/dev/null
 		;;
 	*.bz2)
 		exec bzip2 -d -c "$1"	2>/dev/null
 		;;
 	*.xz)
 		exec xz -d -c "$1"	2>/dev/null
 		;;
 	*.lzma)
 		exec lzma -d -c "$1"	2>/dev/null
 		;;
+	*.zst)
+		exec zstd -d -q -c "$1"	2>/dev/null
+		;;
 esac