diff --git a/target/linux/ath79/dts/qca9531_alfa-network_r36a.dts b/target/linux/ath79/dts/qca9531_alfa-network_r36a.dts
index 2588b10d73..ab65369246 100644
--- a/target/linux/ath79/dts/qca9531_alfa-network_r36a.dts
+++ b/target/linux/ath79/dts/qca9531_alfa-network_r36a.dts
@@ -50,7 +50,8 @@
 };
 
 &eth0 {
-	mtd-mac-address = <&art 0x0>;
+	mtd-mac-address = <&art 0x1002>;
+	mtd-mac-address-increment = <(-2)>;
 };
 
 &eth1 {
@@ -58,7 +59,8 @@
 	 * (GMAC0 -> eth0, GMAC1 -> eth1, same as in old ar71xx target) */
 	compatible = "qca,qca9530-eth", "syscon", "simple-mfd";
 
-	mtd-mac-address = <&art 0x6>;
+	mtd-mac-address = <&art 0x1002>;
+	mtd-mac-address-increment = <(-1)>;
 };
 
 &gpio_export {