diff --git a/components/drivers/include/drivers/dev_serial_v2.h b/components/drivers/include/drivers/dev_serial_v2.h
index 66a4ab2e7e5..877e7f58f10 100644
--- a/components/drivers/include/drivers/dev_serial_v2.h
+++ b/components/drivers/include/drivers/dev_serial_v2.h
@@ -6,7 +6,7 @@
  * Change Logs:
  * Date           Author           Notes
  * 2021-06-01     KyleChan     first version
- */
+ */ 
 
 #ifndef __DEV_SERIAL_V2_H__
 #define __DEV_SERIAL_V2_H__
diff --git a/components/drivers/serial/dev_serial_v2.c b/components/drivers/serial/dev_serial_v2.c
index 488943df2f9..a247d86bbfa 100644
--- a/components/drivers/serial/dev_serial_v2.c
+++ b/components/drivers/serial/dev_serial_v2.c
@@ -3,10 +3,10 @@
  *
  * SPDX-License-Identifier: Apache-2.0
  *
- * Change Logs:
+ * Change Logs: 
  * Date           Author       Notes
  * 2021-06-01     KyleChan     first version
- */
+ */ 
 
 #include <rthw.h>
 #include <rtthread.h>