diff --git a/arch/arm/src/nrf52/nrf52_rtc.h b/arch/arm/src/nrf52/nrf52_rtc.h
index 8814b9e2040..9c5edf464e6 100644
--- a/arch/arm/src/nrf52/nrf52_rtc.h
+++ b/arch/arm/src/nrf52/nrf52_rtc.h
@@ -27,6 +27,8 @@
 
 #include <nuttx/config.h>
 
+#include <nuttx/irq.h>
+
 #include <stdint.h>
 
 /****************************************************************************
diff --git a/arch/arm/src/nrf53/nrf53_rtc.h b/arch/arm/src/nrf53/nrf53_rtc.h
index b086e2972d9..c3e3fd3701e 100644
--- a/arch/arm/src/nrf53/nrf53_rtc.h
+++ b/arch/arm/src/nrf53/nrf53_rtc.h
@@ -27,6 +27,8 @@
 
 #include <nuttx/config.h>
 
+#include <nuttx/irq.h>
+
 #include <stdint.h>
 
 /****************************************************************************
diff --git a/arch/arm/src/nrf91/nrf91_rtc.h b/arch/arm/src/nrf91/nrf91_rtc.h
index acbbe02b523..afacc376acf 100644
--- a/arch/arm/src/nrf91/nrf91_rtc.h
+++ b/arch/arm/src/nrf91/nrf91_rtc.h
@@ -27,6 +27,8 @@
 
 #include <nuttx/config.h>
 
+#include <nuttx/irq.h>
+
 #include <stdint.h>
 
 /****************************************************************************