diff --git a/arch/arm/boot/dts/st/stm32mp135f-dk.dts b/arch/arm/boot/dts/st/stm32mp135f-dk.dts
index 9764a6bfa5b4..f894ee35b3db 100644
--- a/arch/arm/boot/dts/st/stm32mp135f-dk.dts
+++ b/arch/arm/boot/dts/st/stm32mp135f-dk.dts
@@ -161,6 +161,11 @@
 	};
 };
 
+&arm_wdt {
+	timeout-sec = <32>;
+	status = "okay";
+};
+
 &crc1 {
 	status = "okay";
 };