diff --git a/boards/arm/nrf54h20pdk_nrf54h20/nrf54h20pdk_nrf54h20_cpuapp.dts b/boards/arm/nrf54h20pdk_nrf54h20/nrf54h20pdk_nrf54h20_cpuapp.dts
index 8500d22a924..6b96858df5f 100644
--- a/boards/arm/nrf54h20pdk_nrf54h20/nrf54h20pdk_nrf54h20_cpuapp.dts
+++ b/boards/arm/nrf54h20pdk_nrf54h20/nrf54h20pdk_nrf54h20_cpuapp.dts
@@ -136,3 +136,8 @@
 	pinctrl-1 = <&uart136_sleep>;
 	pinctrl-names = "default", "sleep";
 };
+
+&cpuapp_bellboard {
+	interrupts = <96 NRF_DEFAULT_IRQ_PRIORITY>;
+	interrupt-names = "irq0";
+};
diff --git a/boards/arm/nrf54h20pdk_nrf54h20/nrf54h20pdk_nrf54h20_cpurad.dts b/boards/arm/nrf54h20pdk_nrf54h20/nrf54h20pdk_nrf54h20_cpurad.dts
index a7d142b06c4..ac2d98d9e75 100644
--- a/boards/arm/nrf54h20pdk_nrf54h20/nrf54h20pdk_nrf54h20_cpurad.dts
+++ b/boards/arm/nrf54h20pdk_nrf54h20/nrf54h20pdk_nrf54h20_cpurad.dts
@@ -58,3 +58,8 @@
 	pinctrl-1 = <&uart136_sleep>;
 	pinctrl-names = "default", "sleep";
 };
+
+&cpurad_bellboard {
+	interrupts = <96 NRF_DEFAULT_IRQ_PRIORITY>;
+	interrupt-names = "irq0";
+};