diff --git a/arch/arm/boot/dts/bcm53015-meraki-mr26.dts b/arch/arm/boot/dts/bcm53015-meraki-mr26.dts
index 14f58033efeb..ca2266b936ee 100644
--- a/arch/arm/boot/dts/bcm53015-meraki-mr26.dts
+++ b/arch/arm/boot/dts/bcm53015-meraki-mr26.dts
@@ -128,7 +128,7 @@
 
 			fixed-link {
 				speed = <1000>;
-				duplex-full;
+				full-duplex;
 			};
 		};
 	};
diff --git a/arch/arm/boot/dts/bcm53016-meraki-mr32.dts b/arch/arm/boot/dts/bcm53016-meraki-mr32.dts
index 46c2c93b01d8..a34e1746a6c5 100644
--- a/arch/arm/boot/dts/bcm53016-meraki-mr32.dts
+++ b/arch/arm/boot/dts/bcm53016-meraki-mr32.dts
@@ -187,7 +187,7 @@
 
 			fixed-link {
 				speed = <1000>;
-				duplex-full;
+				full-duplex;
 			};
 		};
 	};