diff --git a/target/linux/rdc/base-files/lib/preinit/05_set_ether_mac_rdc b/target/linux/rdc/base-files/lib/preinit/05_set_ether_mac_rdc
index 1a9ad2f2336b4dd843329927867fcd390e134401..4640e008faf1535e70ddeb74686ff8f2c473860f 100644
--- a/target/linux/rdc/base-files/lib/preinit/05_set_ether_mac_rdc
+++ b/target/linux/rdc/base-files/lib/preinit/05_set_ether_mac_rdc
@@ -19,7 +19,7 @@ set_ether_mac() {
 		mac0=$(hexdump -n 6 -e '6/1 ":%X"' -s 24583 $config | cut -c2-)
 		[ "$mac0" = "FF:FF:FF:FF:FF:FF" -o "$mac0" = "0:0:0:0:0:0" ] && unset mac0
 		mac1=$(hexdump -n 6 -e '6/1 ":%X"' -s 24589 $config | cut -c2-)
-		[ "$mac1" = "FF:FF:FF:FF:FF:FF" -o "$mac0" = "0:0:0:0:0:0" ] && unset mac1
+		[ "$mac1" = "FF:FF:FF:FF:FF:FF" -o "$mac1" = "0:0:0:0:0:0" ] && unset mac1
 	fi
 	if [ -n "$mac0" ]; then
 		logger -t kernel -p user.info "r6040: Setting MAC for eth0 to $mac0"