diff --git a/usr.sbin/pkg_install/Makefile.inc b/usr.sbin/pkg_install/Makefile.inc
index 00c44ca5cfe8..46d7443141cc 100644
--- a/usr.sbin/pkg_install/Makefile.inc
+++ b/usr.sbin/pkg_install/Makefile.inc
@@ -1,9 +1,9 @@
-# $NetBSD: Makefile.inc,v 1.5 1997/10/25 06:58:29 lukem Exp $
+# $NetBSD: Makefile.inc,v 1.6 1999/08/19 14:37:36 agc Exp $
 # Original from Freebsd, no rcs id.
 
 LIBINSTALL != cd ${.CURDIR}/../lib;\
     printf "xxx: .MAKE\n\t@echo \$${.OBJDIR}\n" | ${MAKE} -s -f-
-CPPFLAGS+=-I${.CURDIR}/../lib ${DEBUG}
+CPPFLAGS+=-I${.CURDIR}/../lib ${DEBUG} -DBINDIR='"${BINDIR}"'
 DPADD+=	${LIBINSTALL}/libinstall.a
 LDADD+=	-L${LIBINSTALL} -linstall
 
diff --git a/usr.sbin/pkg_install/add/perform.c b/usr.sbin/pkg_install/add/perform.c
index 3fc321c4337f..c4db7553e074 100644
--- a/usr.sbin/pkg_install/add/perform.c
+++ b/usr.sbin/pkg_install/add/perform.c
@@ -1,11 +1,11 @@
-/*	$NetBSD: perform.c,v 1.35 1999/08/19 14:12:34 agc Exp $	*/
+/*	$NetBSD: perform.c,v 1.36 1999/08/19 14:37:37 agc Exp $	*/
 
 #include <sys/cdefs.h>
 #ifndef lint
 #if 0
 static const char *rcsid = "from FreeBSD Id: perform.c,v 1.44 1997/10/13 15:03:46 jkh Exp";
 #else
-__RCSID("$NetBSD: perform.c,v 1.35 1999/08/19 14:12:34 agc Exp $");
+__RCSID("$NetBSD: perform.c,v 1.36 1999/08/19 14:37:37 agc Exp $");
 #endif
 #endif
 
@@ -327,7 +327,8 @@ pkg_do(char *pkg)
 		    if (cp) {
 			if (Verbose)
 			    printf("Loading it from %s.\n", cp);
-		        if (vsystem("/usr/sbin/pkg_add %s%s %s%s",
+		        if (vsystem("%s/pkg_add %s%s %s%s",
+				     BINDIR,
                                      Prefix ? "-p " : "",
                                      Prefix ? Prefix : "",
 				     Verbose ? "-v " : "", cp)) {
@@ -441,7 +442,7 @@ pkg_do(char *pkg)
 	if (Verbose)
 	    printf("mtree -U -f %s -d -e -p %s\n", MTREE_FNAME, p ? p->name : "/");
 	if (!Fake) {
-	    if (vsystem("/usr/sbin/mtree -U -f %s -d -e -p %s", MTREE_FNAME, p ? p->name : "/"))
+	    if (vsystem("%s/mtree -U -f %s -d -e -p %s", BINDIR, MTREE_FNAME, p ? p->name : "/"))
 		warnx("mtree returned a non-zero status - continuing");
 	}
 	unlink(MTREE_FNAME);