diff --git a/arch/arm/dts/zynqmp-p-a2197-00-revA.dts b/arch/arm/dts/zynqmp-p-a2197-00-revA.dts
index d49b632..4f7824a 100644
--- a/arch/arm/dts/zynqmp-p-a2197-00-revA.dts
+++ b/arch/arm/dts/zynqmp-p-a2197-00-revA.dts
@@ -50,7 +50,7 @@
 	non-removable;
 	disable-wp;
 	bus-width = <8>;
-	xlnx,mio_bank = <0>;
+	xlnx,mio-bank = <0>;
 };
 
 &uart0 { /* uart0 MIO38-39 */
@@ -67,7 +67,7 @@
 	status = "okay";
 	no-1-8-v;
 	disable-wp;
-	xlnx,mio_bank = <1>;
+	xlnx,mio-bank = <1>;
 };
 
 &gem0 {