diff --git a/kernel/core/include/tos_slist.h b/kernel/core/include/tos_slist.h
index 9d319f13..413e49bf 100644
--- a/kernel/core/include/tos_slist.h
+++ b/kernel/core/include/tos_slist.h
@@ -1,3 +1,20 @@
+/*----------------------------------------------------------------------------
+ * Tencent is pleased to support the open source community by making TencentOS
+ * available.
+ *
+ * Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
+ * If you have downloaded a copy of the TencentOS binary from Tencent, please
+ * note that the TencentOS binary is licensed under the BSD 3-Clause License.
+ *
+ * If you have downloaded a copy of the TencentOS source code from Tencent,
+ * please note that TencentOS source code is licensed under the BSD 3-Clause
+ * License, except for the third-party components listed below which are
+ * subject to different license terms. Your integration of TencentOS into your
+ * own projects may require compliance with the BSD 3-Clause License, as well
+ * as the other licenses applicable to the third-party components included
+ * within TencentOS.
+ *---------------------------------------------------------------------------*/
+
 #ifndef _TOS_SLIST_H_
 #define  _TOS_SLIST_H_