diff --git a/arch/arm/boot/dts/dove.dtsi b/arch/arm/boot/dts/dove.dtsi
index 113a8bc7bee7..abd7a6fd77f1 100644
--- a/arch/arm/boot/dts/dove.dtsi
+++ b/arch/arm/boot/dts/dove.dtsi
@@ -559,7 +559,7 @@ mdio: mdio-bus@72004 {
 				status = "disabled";
 
 				ethphy: ethernet-phy {
-					device-type = "ethernet-phy";
+					device_type = "ethernet-phy";
 					/* set phy address in board file */
 				};
 			};