diff --git a/arch/arm/boot/dts/stm32mp157c-ed1.dts b/arch/arm/boot/dts/stm32mp157c-ed1.dts
index de8b8a106a36..f77bea49c079 100644
--- a/arch/arm/boot/dts/stm32mp157c-ed1.dts
+++ b/arch/arm/boot/dts/stm32mp157c-ed1.dts
@@ -57,6 +57,11 @@ &i2c4 {
 	status = "okay";
 };
 
+&iwdg2 {
+	timeout-sec = <32>;
+	status = "okay";
+};
+
 &rng1 {
 	status = "okay";
 };