diff --git a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
index bf76ebe46379..f5ec3b644769 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
@@ -102,6 +102,7 @@
 		mod-def0-gpio = <&moxtet_sfp 2 GPIO_ACTIVE_LOW>;
 		tx-disable-gpio = <&moxtet_sfp 4 GPIO_ACTIVE_HIGH>;
 		rate-select0-gpio = <&moxtet_sfp 5 GPIO_ACTIVE_HIGH>;
+		maximum-power-milliwatt = <3000>;
 
 		/* enabled by U-Boot if SFP module is present */
 		status = "disabled";