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 263ddbaf92..a49e685750 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
@@ -51,4 +51,9 @@ case "$board" in
 			macaddr_setbit_la "$(mtd_get_mac_ascii Config protest_lan_mac)" \
 				> /sys${DEVPATH}/macaddress
 		;;
+	tenbay,t-mb5eu-v01)
+		hw_mac_addr="$(mtd_get_mac_binary factory 0x4)"
+		[ "$PHYNBR" = "0" ] && macaddr_add $hw_mac_addr "1" > /sys${DEVPATH}/macaddress
+		[ "$PHYNBR" = "1" ] && macaddr_add $hw_mac_addr "-1" > /sys${DEVPATH}/macaddress
+		;;
 esac