diff --git a/arch/arm64/boot/dts/mediatek/mt8186.dtsi b/arch/arm64/boot/dts/mediatek/mt8186.dtsi
index 0d8d2799d86d..a02bf4ab1504 100644
--- a/arch/arm64/boot/dts/mediatek/mt8186.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8186.dtsi
@@ -333,8 +333,7 @@ pio: pinctrl@10005000 {
 		};
 
 		watchdog: watchdog@10007000 {
-			compatible = "mediatek,mt8186-wdt",
-				     "mediatek,mt6589-wdt";
+			compatible = "mediatek,mt8186-wdt";
 			mediatek,disable-extrst;
 			reg = <0 0x10007000 0 0x1000>;
 			#reset-cells = <1>;