diff --git a/src/irq.rs b/src/irq.rs
index 46160d4..c71ab94 100644
--- a/src/irq.rs
+++ b/src/irq.rs
@@ -14,7 +14,7 @@ static IRQ_HANDLER_TABLE: HandlerTable<MAX_IRQ_COUNT> = HandlerTable::new();
 /// Platform-independent IRQ dispatching.
 #[allow(dead_code)]
 pub(crate) fn dispatch_irq_common(irq_num: usize) {
-    trace!("IRQ {}", irq_num);
+    trace!("CPU {} IRQ {}", crate::cpu::this_cpu_id(), irq_num);
     if !IRQ_HANDLER_TABLE.handle(irq_num) {
         warn!("Unhandled IRQ {}", irq_num);
     }