diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index 8cd688e..e5261bb 100644
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -207,6 +207,7 @@
 		test4-gpios = <&gpio_a 14>, <&gpio_b 4 1 3 2 1>;
 		test5-gpios = <&gpio_a 19>;
 
+		bool-value;
 		int-value = <1234>;
 		uint-value = <(-1234)>;
 		int64-value = /bits/ 64 <0x1111222233334444>;