diff --git a/boards/qemu/x86/qemu_x86_lakemont.dts b/boards/qemu/x86/qemu_x86_lakemont.dts
index 87056f9cf65..b0793772631 100644
--- a/boards/qemu/x86/qemu_x86_lakemont.dts
+++ b/boards/qemu/x86/qemu_x86_lakemont.dts
@@ -31,9 +31,9 @@
 		zephyr,shell-uart = &uart0;
 	};
 
-	dram0: memory@0 {
+	dram0: memory@DT_DRAM_BASE {
 		device_type = "memory";
-		reg = <DT_DRAM_BASE DT_DRAM_SIZE>;
+		reg = <DT_ADDR(DT_DRAM_BASE) DT_DRAM_SIZE>;
 	};
 
 	soc {
diff --git a/boards/qemu/x86/qemu_x86_tiny.dts b/boards/qemu/x86/qemu_x86_tiny.dts
index 9ce52b60d88..54d30c2188c 100644
--- a/boards/qemu/x86/qemu_x86_tiny.dts
+++ b/boards/qemu/x86/qemu_x86_tiny.dts
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-#define DT_DRAM_BASE            0x100000
+/* Note: this is the unit-address (in hex) of the node */
+#define DT_DRAM_BASE            100000
 #define DT_DRAM_SIZE            DT_SIZE_K(256)
 #include "qemu_x86.dts"
diff --git a/dts/x86/intel/atom.dtsi b/dts/x86/intel/atom.dtsi
index f5a815766c1..d1d4758c3cd 100644
--- a/dts/x86/intel/atom.dtsi
+++ b/dts/x86/intel/atom.dtsi
@@ -36,9 +36,9 @@
 		#address-cells = <1>;
 	};
 
-	dram0: memory@0 {
+	dram0: memory@DT_DRAM_BASE {
 		device_type = "memory";
-		reg = <DT_DRAM_BASE DT_DRAM_SIZE>;
+		reg = <DT_ADDR(DT_DRAM_BASE) DT_DRAM_SIZE>;
 	};
 
 	soc {