diff --git a/boards/dptechnics/walter/walter_esp32s3_procpu.dts b/boards/dptechnics/walter/walter_esp32s3_procpu.dts
index 6b696be0d0f..0568d597960 100644
--- a/boards/dptechnics/walter/walter_esp32s3_procpu.dts
+++ b/boards/dptechnics/walter/walter_esp32s3_procpu.dts
@@ -49,6 +49,7 @@
 		status = "okay";
 		compatible = "sqn,gm02s";
 		mdm-reset-gpios = <&gpio1 13 (GPIO_OPEN_DRAIN | GPIO_ACTIVE_LOW)>;
+		mdm-wake-gpios = <&gpio1 14 (GPIO_OPEN_SOURCE | GPIO_ACTIVE_HIGH)>;
 	};
 };