diff --git a/target/linux/ar71xx/base-files/etc/board.d/02_network b/target/linux/ar71xx/base-files/etc/board.d/02_network
index b7d6a3e1b7..dcf0812dbf 100755
--- a/target/linux/ar71xx/base-files/etc/board.d/02_network
+++ b/target/linux/ar71xx/base-files/etc/board.d/02_network
@@ -3,6 +3,7 @@
 # Copyright (C) 2011-2015 OpenWrt.org
 #
 
+. /lib/functions/system.sh
 . /lib/functions/uci-defaults-new.sh
 . /lib/ar71xx.sh