diff --git a/samples/boards/st/power_mgmt/wkup_pins/boards/nucleo_g031k8.overlay b/samples/boards/st/power_mgmt/wkup_pins/boards/nucleo_g031k8.overlay
new file mode 100644
index 00000000000..0855169993e
--- /dev/null
+++ b/samples/boards/st/power_mgmt/wkup_pins/boards/nucleo_g031k8.overlay
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2025 A Labs GmbH
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/dt-bindings/input/input-event-codes.h>
+
+/ {
+	/* the board has no actual button, you need to connect PA0 to GND with a jumper wire */
+	gpio_keys {
+		compatible = "gpio-keys";
+		user_button: button {
+			label = "User";
+			gpios = <&gpioa 0 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+			zephyr,code = <INPUT_KEY_0>;
+		};
+	};
+
+	aliases {
+		wkup-src = &user_button;
+	};
+};
+
+&pwr {
+	status = "okay";
+};
diff --git a/samples/boards/st/power_mgmt/wkup_pins/sample.yaml b/samples/boards/st/power_mgmt/wkup_pins/sample.yaml
index 2924e8694c0..821f9d8d047 100644
--- a/samples/boards/st/power_mgmt/wkup_pins/sample.yaml
+++ b/samples/boards/st/power_mgmt/wkup_pins/sample.yaml
@@ -6,6 +6,7 @@ tests:
     filter: dt_enabled_alias_with_parent_compat("wkup-src",
       "gpio-keys") and dt_compat_enabled("st,stm32-pwr")
     platform_allow:
+      - nucleo_g031k8
       - nucleo_l4r5zi
       - nucleo_u575zi_q
       - nucleo_u5a5zj_q