diff --git a/target/linux/ath79/dts/ar7241_tplink.dtsi b/target/linux/ath79/dts/ar7241_tplink.dtsi
index 84a9a4f63d6..0861cc62322 100644
--- a/target/linux/ath79/dts/ar7241_tplink.dtsi
+++ b/target/linux/ath79/dts/ar7241_tplink.dtsi
@@ -94,18 +94,17 @@
 	};
 };
 
-&eth0 {
+&eth0 {		/* WAN interface, initialized last as eth1 */
 	status = "okay";
 
 	nvmem-cells = <&macaddr_uboot_1fc00>;
 	nvmem-cell-names = "mac-address";
-	mac-address-increment = <(-1)>;
+	mac-address-increment = <1>;
 };
 
-&eth1 {
+&eth1 {		/* LAN interface, initialized first as eth0 */
 	nvmem-cells = <&macaddr_uboot_1fc00>;
 	nvmem-cell-names = "mac-address";
-	mac-address-increment = <1>;
 };
 
 &uboot {