diff --git a/drivers/iommu/intel/perf.c b/drivers/iommu/intel/perf.c
index 73b7ec7055521..0e8e03252d921 100644
--- a/drivers/iommu/intel/perf.c
+++ b/drivers/iommu/intel/perf.c
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
-/**
+/*
  * perf.c - performance monitor
  *
  * Copyright (C) 2021 Intel Corporation