diff --git a/arch/arm64/boot/dts/rockchip/rk3568-qnap-ts433.dts b/arch/arm64/boot/dts/rockchip/rk3568-qnap-ts433.dts
index 9a0cb69c3cfa..6c4269b3d959 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568-qnap-ts433.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3568-qnap-ts433.dts
@@ -531,6 +531,11 @@ vcc5v0_otg_en: vcc5v0-otg-en {
 	};
 };
 
+&pmu_io_domains {
+	vccio4-supply = <&vcc_1v8>;
+	vccio6-supply = <&vcc_1v8>;
+};
+
 &sata1 {
 	status = "okay";
 };