diff --git a/boards/arm/qemu_raspi3/qemu_raspi3.dts b/boards/arm/qemu_raspi3/qemu_raspi3.dts
index 8ce7072f6e3d6630400e59f1f68f104d6a3921b2..91d21175124a8191dd368bc8e89b06e952857b2b 100644
--- a/boards/arm/qemu_raspi3/qemu_raspi3.dts
+++ b/boards/arm/qemu_raspi3/qemu_raspi3.dts
@@ -75,7 +75,7 @@
         aux: aux@3f215000 {
             compatible = "arm,raspi3_mini";
 			/* #clock-cells = <1>; */
-			reg = <0x3f215000 0x8>;
+			reg = <0x3f215000 0x1000>;
 			/* clocks = <&clocks BCM2835_CLOCK_VPU>; */
             label = "UART_1";
 		};