diff --git a/arch/arm/boot/dts/stm32mp151.dtsi b/arch/arm/boot/dts/stm32mp151.dtsi
index 3ea05ba48215..5260818543e5 100644
--- a/arch/arm/boot/dts/stm32mp151.dtsi
+++ b/arch/arm/boot/dts/stm32mp151.dtsi
@@ -550,14 +550,14 @@ dac: dac@40017000 {
 
 			dac1: dac@1 {
 				compatible = "st,stm32-dac";
-				#io-channels-cells = <1>;
+				#io-channel-cells = <1>;
 				reg = <1>;
 				status = "disabled";
 			};
 
 			dac2: dac@2 {
 				compatible = "st,stm32-dac";
-				#io-channels-cells = <1>;
+				#io-channel-cells = <1>;
 				reg = <2>;
 				status = "disabled";
 			};