diff --git a/arch/ARM/cortex_m/src/nvic_cm4_cm7/cortex_m-nvic.ads b/arch/ARM/cortex_m/src/nvic_cm4_cm7/cortex_m-nvic.ads
index 6c53ebee..e9420ef1 100644
--- a/arch/ARM/cortex_m/src/nvic_cm4_cm7/cortex_m-nvic.ads
+++ b/arch/ARM/cortex_m/src/nvic_cm4_cm7/cortex_m-nvic.ads
@@ -43,11 +43,12 @@
 --  STM32F4 (ARM Cortex M4F) microcontrollers from ST Microelectronics.
 
 with System;
-with HAL;            use HAL;
-with Ada.Interrupts; use Ada.Interrupts;
+with HAL;    use HAL;
 
 package Cortex_M.NVIC is  -- the Nested Vectored Interrupt Controller
 
+   type Interrupt_ID is range 0 .. 240;
+
    --  0 bits for pre-emption priority;  4 bits for subpriority
    Priority_Group_0 : constant UInt32 := 16#00000007#;