diff --git a/target/linux/ath79/dts/qca9558_tl-archer-c7.dtsi b/target/linux/ath79/dts/qca9558_tl-archer-c7.dtsi
index 3be8786897..08b8e9257c 100644
--- a/target/linux/ath79/dts/qca9558_tl-archer-c7.dtsi
+++ b/target/linux/ath79/dts/qca9558_tl-archer-c7.dtsi
@@ -224,4 +224,5 @@
 	status = "okay";
 	mtd-cal-data = <&art 0x1000>;
 	mtd-mac-address = <&uboot 0x1fc00>;
+	mtd-mac-address-increment = <(-1)>;
 };