diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
index 904122711a89..25150aba749d 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
@@ -329,7 +329,7 @@ &reg_dldo3 {
 
 &reg_dldo4 {
 	regulator-min-microvolt = <1800000>;
-	regulator-max-microvolt = <3300000>;
+	regulator-max-microvolt = <1800000>;
 	regulator-name = "vcc-wifi-io";
 };