diff --git a/usr.bin/yacc/Makefile b/usr.bin/yacc/Makefile
index 5ff2152d26f4..41aa232c71f1 100644
--- a/usr.bin/yacc/Makefile
+++ b/usr.bin/yacc/Makefile
@@ -4,6 +4,8 @@ PROG=	yacc
 SRCS=	closure.c error.c lalr.c lr0.c main.c mkpar.c output.c reader.c \
 	skeleton.c symtab.c verbose.c warshall.c
 MAN1=	yacc.1 yyfix.1
+LINKS+=	${BINDIR}/yacc ${BINDIR}/byacc
+MLINKS+=yacc.1 byacc.1
 
 beforeinstall:
 	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} \