diff --git a/arch/arm/boot/dts/r8a7791.dtsi b/arch/arm/boot/dts/r8a7791.dtsi
index 008a260f86a5..8266a9b7cafd 100644
--- a/arch/arm/boot/dts/r8a7791.dtsi
+++ b/arch/arm/boot/dts/r8a7791.dtsi
@@ -240,7 +240,7 @@ thermal: thermal@e61f0000 {
 		compatible =	"renesas,thermal-r8a7791",
 				"renesas,rcar-gen2-thermal",
 				"renesas,rcar-thermal";
-		reg = <0 0xe61f0000 0 0x14>, <0 0xe61f0100 0 0x38>;
+		reg = <0 0xe61f0000 0 0x10>, <0 0xe61f0100 0 0x38>;
 		interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&cpg CPG_MOD 522>;
 		power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;