diff --git a/arch/sandbox/dts/sandbox.dts b/arch/sandbox/dts/sandbox.dts
index f1637c80f64..4dd82f6a32f 100644
--- a/arch/sandbox/dts/sandbox.dts
+++ b/arch/sandbox/dts/sandbox.dts
@@ -6,6 +6,7 @@
 	#address-cells = <1>;
 	#size-cells = <1>;
 	model = "sandbox";
+	compatible = "sandbox";
 
 	aliases {
 		i2c0 = &i2c_0;
diff --git a/arch/sandbox/dts/sandbox64.dts b/arch/sandbox/dts/sandbox64.dts
index 37a5539ff47..5c95cee9d7a 100644
--- a/arch/sandbox/dts/sandbox64.dts
+++ b/arch/sandbox/dts/sandbox64.dts
@@ -6,6 +6,7 @@
 	#address-cells = <2>;
 	#size-cells = <2>;
 	model = "sandbox";
+	compatible = "sandbox";
 
 	aliases {
 		i2c0 = &i2c_0;