diff --git a/tests/drivers/build_all/w1/app.overlay b/tests/drivers/build_all/w1/app.overlay
index fe022c51461..c68ceb1b833 100644
--- a/tests/drivers/build_all/w1/app.overlay
+++ b/tests/drivers/build_all/w1/app.overlay
@@ -28,6 +28,19 @@
 			gpios = <&test_gpio 0 0>;
 		};
 
+		test_uart: uart@55556666 {
+			compatible = "vnd,serial";
+			reg = <0x55556666 0x1000>;
+			status = "okay";
+
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			test_uart_w1_serial: w1_serial {
+				compatible = "zephyr,w1-serial";
+			};
+		};
+
 		test_i2c: i2c@11112222 {
 			#address-cells = <1>;
 			#size-cells = <0>;