diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a.dtsi b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
index 6699966..a7e7ec5 100644
--- a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
@@ -390,7 +390,7 @@
 	thermal: thermal@1100c800 {
 		#thermal-sensor-cells = <1>;
 		compatible = "mediatek,mt7986-thermal";
-		reg = <0 0x1100c800 0 0x1000>;
+		reg = <0 0x1100c800 0 0x800>;
 		interrupts = <GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&infracfg_ao CK_INFRA_THERM_CK>,
 			 <&infracfg_ao CK_INFRA_ADC_26M_CK>;
diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986b.dtsi b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986b.dtsi
index 1bfb9ee..64149a3 100644
--- a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986b.dtsi
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986b.dtsi
@@ -390,7 +390,7 @@
 	thermal: thermal@1100c800 {
 		#thermal-sensor-cells = <1>;
 		compatible = "mediatek,mt7986-thermal";
-		reg = <0 0x1100c800 0 0x1000>;
+		reg = <0 0x1100c800 0 0x800>;
 		interrupts = <GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&infracfg_ao CK_INFRA_THERM_CK>,
 			 <&infracfg_ao CK_INFRA_ADC_26M_CK>;