--- Makefile.orig	2009-04-13 11:03:12.000000000 +0200
+++ Makefile	2009-04-13 11:05:03.000000000 +0200
@@ -4,9 +4,9 @@
 MAN = $(DESTDIR)/usr/share/man
 
 # bin and man dirs for *BSD
-BIN_BSD = $(DESTDIR)/usr/local/bin
-SBIN_BSD = $(DESTDIR)/usr/local/sbin
-MAN_BSD = $(DESTDIR)/usr/local/man
+BIN_BSD = ${PREFIX}/bin
+SBIN_BSD = ${PREFIX}/sbin
+MAN_BSD = ${PREFIX}/man
 
 default: vnstat