diff --git a/zephyr/include/rtos/interrupt.h b/zephyr/include/rtos/interrupt.h
index 6a8c9890e..788abfcf3 100644
--- a/zephyr/include/rtos/interrupt.h
+++ b/zephyr/include/rtos/interrupt.h
@@ -52,7 +52,8 @@ static inline void interrupt_unregister(uint32_t irq, const void *arg)
  */
 static inline int interrupt_get_irq(unsigned int irq, const char *cascade)
 {
-#if defined(CONFIG_LIBRARY) || defined(CONFIG_ACE) || defined(CONFIG_ZEPHYR_POSIX)
+#if defined(CONFIG_LIBRARY) || defined(CONFIG_ACE) || \
+	defined(CONFIG_ZEPHYR_POSIX) || defined(CONFIG_ARM64)
 	return irq;
 #else
 	if (cascade == irq_name_level2)