diff --git a/arch/arm/boot/dts/nxp/lpc/lpc4350-hitex-eval.dts b/arch/arm/boot/dts/nxp/lpc/lpc4350-hitex-eval.dts
index 9d36283efe0f..18f757c56905 100644
--- a/arch/arm/boot/dts/nxp/lpc/lpc4350-hitex-eval.dts
+++ b/arch/arm/boot/dts/nxp/lpc/lpc4350-hitex-eval.dts
@@ -43,50 +43,50 @@ pca_buttons {
 		poll-interval = <100>;
 		autorepeat;
 
-		button0 {
+		button-0 {
 			label = "joy:right";
 			linux,code = <KEY_RIGHT>;
 			gpios = <&pca_gpio 8 GPIO_ACTIVE_LOW>;
 		};
 
-		button1 {
+		button-1 {
 			label = "joy:up";
 			linux,code = <KEY_UP>;
 			gpios = <&pca_gpio 9 GPIO_ACTIVE_LOW>;
 		};
 
 
-		button2 {
+		button-2 {
 			label = "joy:enter";
 			linux,code = <KEY_ENTER>;
 			gpios = <&pca_gpio 10 GPIO_ACTIVE_LOW>;
 		};
 
-		button3 {
+		button-3 {
 			label = "joy:left";
 			linux,code = <KEY_LEFT>;
 			gpios = <&pca_gpio 11 GPIO_ACTIVE_LOW>;
 		};
 
-		button4 {
+		button-4 {
 			label = "joy:down";
 			linux,code = <KEY_DOWN>;
 			gpios = <&pca_gpio 12 GPIO_ACTIVE_LOW>;
 		};
 
-		button5 {
+		button-5 {
 			label = "user:sw3";
 			linux,code = <KEY_F1>;
 			gpios = <&pca_gpio 13 GPIO_ACTIVE_LOW>;
 		};
 
-		button6 {
+		button-6 {
 			label = "user:sw4";
 			linux,code = <KEY_F2>;
 			gpios = <&pca_gpio 14 GPIO_ACTIVE_LOW>;
 		};
 
-		button7 {
+		button-7 {
 			label = "user:sw5";
 			linux,code = <KEY_F3>;
 			gpios = <&pca_gpio 15 GPIO_ACTIVE_LOW>;
diff --git a/arch/arm/boot/dts/nxp/lpc/lpc4357-ea4357-devkit.dts b/arch/arm/boot/dts/nxp/lpc/lpc4357-ea4357-devkit.dts
index 9dc8c3cc2211..7ccb4c2ca571 100644
--- a/arch/arm/boot/dts/nxp/lpc/lpc4357-ea4357-devkit.dts
+++ b/arch/arm/boot/dts/nxp/lpc/lpc4357-ea4357-devkit.dts
@@ -60,31 +60,31 @@ gpio_joystick {
 		poll-interval = <100>;
 		autorepeat;
 
-		button0 {
+		button-0 {
 			label = "joy_enter";
 			linux,code = <KEY_ENTER>;
 			gpios = <&gpio LPC_GPIO(4,8) GPIO_ACTIVE_LOW>;
 		};
 
-		button1 {
+		button-1 {
 			label = "joy_left";
 			linux,code = <KEY_LEFT>;
 			gpios = <&gpio LPC_GPIO(4,9) GPIO_ACTIVE_LOW>;
 		};
 
-		button2 {
+		button-2 {
 			label = "joy_up";
 			linux,code = <KEY_UP>;
 			gpios = <&gpio LPC_GPIO(4,10) GPIO_ACTIVE_LOW>;
 		};
 
-		button3 {
+		button-3 {
 			label = "joy_right";
 			linux,code = <KEY_RIGHT>;
 			gpios = <&gpio LPC_GPIO(4,12) GPIO_ACTIVE_LOW>;
 		};
 
-		button4 {
+		button-4 {
 			label = "joy_down";
 			linux,code = <KEY_DOWN>;
 			gpios = <&gpio LPC_GPIO(4,13) GPIO_ACTIVE_LOW>;