diff --git a/arch/arm64/boot/dts/rockchip/rv1126b.dtsi b/arch/arm64/boot/dts/rockchip/rv1126b.dtsi
index e50a2ab934fb..b41d5e387ced 100644
--- a/arch/arm64/boot/dts/rockchip/rv1126b.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rv1126b.dtsi
@@ -896,6 +896,7 @@
 
 	rockchip_system_monitor: rockchip-system-monitor {
 		compatible = "rockchip,system-monitor";
+		rockchip,thermal-zone = "cpu-thermal";
 	};
 
 	thermal_zones: thermal-zones {