diff --git a/ipv6/wide-dhcpv6/Makefile b/ipv6/wide-dhcpv6/Makefile
index bdb74cc03..04f13264d 100644
--- a/ipv6/wide-dhcpv6/Makefile
+++ b/ipv6/wide-dhcpv6/Makefile
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=wide-dhcpv6
 PKG_VERSION:=20080615
-PKG_RELEASE:=9
+PKG_RELEASE:=10
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=@SF/$(PKG_NAME)
diff --git a/ipv6/wide-dhcpv6/files/dhcp6c.init b/ipv6/wide-dhcpv6/files/dhcp6c.init
index b60b45b0e..12248109e 100644
--- a/ipv6/wide-dhcpv6/files/dhcp6c.init
+++ b/ipv6/wide-dhcpv6/files/dhcp6c.init
@@ -51,7 +51,7 @@ dhcp6c_write_duid() {
 			local len_lo=$(printf "%02x" $((${#len_id} % 0xFF)) )
 
 			# low endian
-			if [ "$(printf \\1 | hexdump -n1 -ve '8/2 "%04x"')" = "0001" ]; then
+			if [ "$(printf \\1 | hexdump -n1 -ve '8/2 "" "%04x" ""')" = "0001" ]; then
 				printf \\x$len_lo\\x$len_hi
 
 			# big endian