diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig
index cf1a4a68ce444f03218ea0adbbd1f0ea178cc4d0..d1a758bc972afcb3f7c0103de781fa5720bea126 100644
--- a/kernel/irq/Kconfig
+++ b/kernel/irq/Kconfig
@@ -62,7 +62,7 @@ config IRQ_DOMAIN_DEBUG
 	help
 	  This option will show the mapping relationship between hardware irq
 	  numbers and Linux irq numbers. The mapping is exposed via debugfs
-	  in the file "virq_mapping".
+	  in the file "irq_domain_mapping".
 
 	  If you don't know what this means you don't need it.