diff --git a/arch/sandbox/dts/sandbox.dtsi b/arch/sandbox/dts/sandbox.dtsi
index 8a115c503dc..02b03894eaf 100644
--- a/arch/sandbox/dts/sandbox.dtsi
+++ b/arch/sandbox/dts/sandbox.dtsi
@@ -135,7 +135,7 @@
 			sandbox,emul = <&emul0>;
 			bootph-pre-ram;
 		};
-		sandbox_pmic: sandbox_pmic {
+		sandbox_pmic: sandbox_pmic@40 {
 			reg = <0x40>;
 		};
 
@@ -143,9 +143,9 @@
 			reg = <0x41>;
 		};
 
-		i2c_emul: emul {
+		i2c_emul: emul@7f {
 			bootph-pre-ram;
-			reg = <0xff>;
+			reg = <0x7f>;
 			compatible = "sandbox,i2c-emul-parent";
 			emul_eeprom: emul-eeprom {
 				compatible = "sandbox,i2c-eeprom";
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index 0b3fc505e53..bb17a687862 100644
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -947,8 +947,8 @@
 			sandbox,emul = <&emul1>;
 		};
 
-		i2c_emul: emul {
-			reg = <0xff>;
+		i2c_emul: emul@7f {
+			reg = <0x7f>;
 			compatible = "sandbox,i2c-emul-parent";
 			emul_eeprom: emul-eeprom {
 				compatible = "sandbox,i2c-eeprom";
@@ -963,7 +963,7 @@
 			};
 		};
 
-		sandbox_pmic: sandbox_pmic {
+		sandbox_pmic: sandbox_pmic@40 {
 			reg = <0x40>;
 			sandbox,emul = <&emul_pmic0>;
 		};
diff --git a/test/dm/pmic.c b/test/dm/pmic.c
index 70dd18f5df0..b163b8e315d 100644
--- a/test/dm/pmic.c
+++ b/test/dm/pmic.c
@@ -39,7 +39,7 @@ static inline int power_pmic_get(struct unit_test_state *uts, char *name)
 /* Test PMIC get method */
 static int dm_test_power_pmic_get(struct unit_test_state *uts)
 {
-	power_pmic_get(uts, "sandbox_pmic");
+	power_pmic_get(uts, "sandbox_pmic@40");
 
 	return 0;
 }
@@ -57,7 +57,7 @@ DM_TEST(dm_test_power_pmic_mc34708_get, UTF_SCAN_FDT);
 /* Test PMIC I/O */
 static int dm_test_power_pmic_io(struct unit_test_state *uts)
 {
-	const char *name = "sandbox_pmic";
+	const char *name = "sandbox_pmic@40";
 	uint8_t out_buffer, in_buffer;
 	struct udevice *dev;
 	int reg_count, i;