diff --git a/target/linux/ramips/mt7621/base-files/etc/board.d/02_network b/target/linux/ramips/mt7621/base-files/etc/board.d/02_network
index 8f3556d947..66a2f897d4 100644
--- a/target/linux/ramips/mt7621/base-files/etc/board.d/02_network
+++ b/target/linux/ramips/mt7621/base-files/etc/board.d/02_network
@@ -286,7 +286,7 @@ ramips_setup_macs()
 		wan_mac=$(macaddr_add "$lan_mac" 1)
 		;;
 	jdcloud,re-sp-01b)
-		lan_mac=$(mtd_get_mac_ascii config mac)
+		lan_mac=$(macaddr_canonicalize "$(strings "$(find_mtd_part config)" | sed -n 's/^'"mac"'=//p' | head -n1)")
 		wan_mac=$lan_mac
 		label_mac=$lan_mac
 		;;
diff --git a/target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac b/target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac
index de39a6d38b..73131c5310 100644
--- a/target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac
+++ b/target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac
@@ -127,7 +127,7 @@ case "$board" in
 			macaddr_setbit_la "$(mtd_get_mac_binary Factory 0x4)" > /sys${DEVPATH}/macaddress
 		;;
 	jdcloud,re-sp-01b)
-		addr=$(mtd_get_mac_ascii config mac)
+		addr=$(macaddr_canonicalize "$(strings "$(find_mtd_part config)" | sed -n 's/^'"mac"'=//p' | head -n1)")
 		[ "$PHYNBR" = "0" ] && echo $addr > /sys${DEVPATH}/macaddress
 		[ "$PHYNBR" = "1" ] && macaddr_add $addr 0x800000 > /sys${DEVPATH}/macaddress
 		;;