diff --git a/pkgtools/pkg_install/INSTALL b/pkgtools/pkg_install/INSTALL
index 5726b2a11fee..13dccce18033 100644
--- a/pkgtools/pkg_install/INSTALL
+++ b/pkgtools/pkg_install/INSTALL
@@ -1,11 +1,12 @@
 #!/bin/sh
 #
-# $NetBSD: INSTALL,v 1.1 2005/11/06 22:15:44 jlam Exp $
+# $NetBSD: INSTALL,v 1.2 2005/11/07 06:52:24 jlam Exp $
 
 PKGNAME="$1"
 STAGE="$2"
 
 PKG_DBDIR="@PKG_DBDIR@"
+PKG_TOOLS_BIN="@PKG_TOOLS_BIN@"
 MKDIR="@MKDIR@"
 
 case ${STAGE} in
@@ -14,6 +15,6 @@ PRE-INSTALL)
 	;;
 
 POST-INSTALL)
-	[ -f ${PKG_DBDIR}/pkgdb.byfile.db ] || ${PKG_PREFIX}/bin/pkg_admin rebuild
+	[ -f ${PKG_DBDIR}/pkgdb.byfile.db ] || ${PKG_TOOLS_BIN}/pkg_admin rebuild
 	;;
 esac
diff --git a/pkgtools/pkg_install/Makefile b/pkgtools/pkg_install/Makefile
index 640451ab672d..106f88924cbc 100644
--- a/pkgtools/pkg_install/Makefile
+++ b/pkgtools/pkg_install/Makefile
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.119 2005/11/07 06:32:58 jlam Exp $
+# $NetBSD: Makefile,v 1.120 2005/11/07 06:52:24 jlam Exp $
 
 # Notes to package maintainers:
 #
@@ -79,6 +79,7 @@ do-extract:
 
 post-build:
 	${SED}	-e "s|@PKG_DBDIR@|${PKG_DBDIR}|g"			\
+		-e "s|@PKG_TOOLS_BIN@|${PKG_TOOLS_BIN}|g"		\
 		-e "s|@MKDIR@|${MKDIR}|g"				\
 		${PKGDIR}/INSTALL > ${INSTALL_FILE}
 	${CHMOD} +x ${INSTALL_FILE}