--- ./conf/Makefile.orig	2009-05-19 12:50:14.000000000 -0400
+++ ./conf/Makefile	2014-06-27 03:51:00.000000000 -0400
@@ -32,7 +32,7 @@
 	     -e "s+@ifname_v6udpv4@+$(PLATFORM_V6UDPV4)+" \
 	     -e "s+@ifname_v6v4@+$(PLATFORM_V6V4)+" \
 	     -e "s+@conf_template@+$(PLATFORM)+" \
-	     -e "s+@conf_gw6_dir@+$(INSTALL_DIR)+" \
+	     -e "s+@conf_gw6_dir@+$(PREFIX)+" \
 	     gw6c.conf.in > $(BIN_DIR)/gw6c.conf.sample
 	@chmod 700 $(BIN_DIR)/gw6c.conf.sample