diff --git a/target/linux/ath79/dts/qca9531_glinet_gl-ar300m.dtsi b/target/linux/ath79/dts/qca9531_glinet_gl-ar300m.dtsi
index fe986bdde0..55002b44e3 100644
--- a/target/linux/ath79/dts/qca9531_glinet_gl-ar300m.dtsi
+++ b/target/linux/ath79/dts/qca9531_glinet_gl-ar300m.dtsi
@@ -84,7 +84,8 @@
 };
 
 &eth1 {
-	mtd-mac-address = <&art 0x6>;
+	mtd-mac-address = <&art 0x0>;
+	mtd-mac-address-increment = <1>;
 };
 
 &wmac {
diff --git a/target/linux/ath79/dts/qca9531_glinet_gl-x750.dts b/target/linux/ath79/dts/qca9531_glinet_gl-x750.dts
index f8a511933c..79cd51673a 100644
--- a/target/linux/ath79/dts/qca9531_glinet_gl-x750.dts
+++ b/target/linux/ath79/dts/qca9531_glinet_gl-x750.dts
@@ -126,7 +126,8 @@
 };
 
 &eth1 {
-	mtd-mac-address = <&art 0x6>;
+	mtd-mac-address = <&art 0x0>;
+	mtd-mac-address-increment = <1>;
 };
 
 &wmac {