diff --git a/target/linux/mpc85xx/base-files/lib/preinit/10_fix_eth_mac.sh b/target/linux/mpc85xx/base-files/lib/preinit/10_fix_eth_mac.sh
index d84ab5f186b..0d9058420b7 100644
--- a/target/linux/mpc85xx/base-files/lib/preinit/10_fix_eth_mac.sh
+++ b/target/linux/mpc85xx/base-files/lib/preinit/10_fix_eth_mac.sh
@@ -1,4 +1,5 @@
 . /lib/functions.sh
+. /lib/functions/system.sh
 
 preinit_set_mac_address() {
 	case $(board_name) in