diff --git a/boards/nordic/nrf54l15pdk/nrf54l15pdk_nrf54l15-common.dtsi b/boards/nordic/nrf54l15pdk/nrf54l15pdk_nrf54l15-common.dtsi
index 028bcfccd54..75dbe784097 100644
--- a/boards/nordic/nrf54l15pdk/nrf54l15pdk_nrf54l15-common.dtsi
+++ b/boards/nordic/nrf54l15pdk/nrf54l15pdk_nrf54l15-common.dtsi
@@ -60,7 +60,7 @@
 		sw1 = &button1;
 		sw2 = &button2;
 		sw3 = &button3;
-		watchdog0 = &wdt30;
+		watchdog0 = &wdt31;
 	};
 };
 
diff --git a/samples/drivers/watchdog/boards/nrf54l15pdk_nrf54l15_cpuapp.overlay b/samples/drivers/watchdog/boards/nrf54l15pdk_nrf54l15_cpuapp.overlay
index 66157d79fb3..5c765a8a896 100644
--- a/samples/drivers/watchdog/boards/nrf54l15pdk_nrf54l15_cpuapp.overlay
+++ b/samples/drivers/watchdog/boards/nrf54l15pdk_nrf54l15_cpuapp.overlay
@@ -3,6 +3,6 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-&wdt30 {
+&wdt31 {
 	status = "okay";
 };
diff --git a/samples/drivers/watchdog/boards/nrf54l15pdk_nrf54l15_cpuflpr.overlay b/samples/drivers/watchdog/boards/nrf54l15pdk_nrf54l15_cpuflpr.overlay
index 66157d79fb3..5c765a8a896 100644
--- a/samples/drivers/watchdog/boards/nrf54l15pdk_nrf54l15_cpuflpr.overlay
+++ b/samples/drivers/watchdog/boards/nrf54l15pdk_nrf54l15_cpuflpr.overlay
@@ -3,6 +3,6 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-&wdt30 {
+&wdt31 {
 	status = "okay";
 };
diff --git a/samples/drivers/watchdog/boards/nrf54l15pdk_nrf54l15_cpuflpr_xip.overlay b/samples/drivers/watchdog/boards/nrf54l15pdk_nrf54l15_cpuflpr_xip.overlay
index 66157d79fb3..5c765a8a896 100644
--- a/samples/drivers/watchdog/boards/nrf54l15pdk_nrf54l15_cpuflpr_xip.overlay
+++ b/samples/drivers/watchdog/boards/nrf54l15pdk_nrf54l15_cpuflpr_xip.overlay
@@ -3,6 +3,6 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-&wdt30 {
+&wdt31 {
 	status = "okay";
 };
diff --git a/tests/drivers/watchdog/wdt_basic_api/boards/nrf54l15pdk_nrf54l15_cpuapp.overlay b/tests/drivers/watchdog/wdt_basic_api/boards/nrf54l15pdk_nrf54l15_cpuapp.overlay
index aa2789dd45e..8d3dce3b380 100644
--- a/tests/drivers/watchdog/wdt_basic_api/boards/nrf54l15pdk_nrf54l15_cpuapp.overlay
+++ b/tests/drivers/watchdog/wdt_basic_api/boards/nrf54l15pdk_nrf54l15_cpuapp.overlay
@@ -4,6 +4,6 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-&wdt30 {
+&wdt31 {
 	status = "okay";
 };