diff --git a/arch/arm/boot/dts/stm32h743.dtsi b/arch/arm/boot/dts/stm32h743.dtsi
index 05eb02e6d083..9b7fc68380e9 100644
--- a/arch/arm/boot/dts/stm32h743.dtsi
+++ b/arch/arm/boot/dts/stm32h743.dtsi
@@ -180,14 +180,14 @@
 
 			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";
 			};