diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts
index c1e57597f..cf0a7b490 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts
@@ -24,7 +24,7 @@
 
 	backlight: backlight {
 		compatible = "pwm-backlight";
-		pwms = <&pwm 0 50000 0>;
+		pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
 		brightness-levels = <0 5 10 15 20 30 40 55 70 85 100>;
 		default-brightness-level = <2>;
 		enable-gpios = <&pio 3 23 GPIO_ACTIVE_HIGH>; /* PD23 */