diff --git a/features/netsocket/emac-drivers/TARGET_GD_EMAC/TARGET_GD32F30X/gd32f3_eth_init.c b/features/netsocket/emac-drivers/TARGET_GD_EMAC/TARGET_GD32F30X/gd32f3_eth_init.c
index 5ee8fe4c16..326acd8de1 100644
--- a/features/netsocket/emac-drivers/TARGET_GD_EMAC/TARGET_GD32F30X/gd32f3_eth_init.c
+++ b/features/netsocket/emac-drivers/TARGET_GD_EMAC/TARGET_GD32F30X/gd32f3_eth_init.c
@@ -1,6 +1,8 @@
 /* mbed Microcontroller Library
  * Copyright (c) 2018 Gigadevice Semiconductor Inc.
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
diff --git a/features/netsocket/emac-drivers/TARGET_GD_EMAC/gd32xx_emac.cpp b/features/netsocket/emac-drivers/TARGET_GD_EMAC/gd32xx_emac.cpp
index 0e3ae6b85d..08fb226954 100644
--- a/features/netsocket/emac-drivers/TARGET_GD_EMAC/gd32xx_emac.cpp
+++ b/features/netsocket/emac-drivers/TARGET_GD_EMAC/gd32xx_emac.cpp
@@ -2,6 +2,8 @@
 /* mbed Microcontroller Library
  * Copyright (c) 2018 Gigadevice Semiconductor Inc.
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
diff --git a/features/netsocket/emac-drivers/TARGET_GD_EMAC/gd32xx_emac.h b/features/netsocket/emac-drivers/TARGET_GD_EMAC/gd32xx_emac.h
index 19bdde45e3..3600c8ed91 100644
--- a/features/netsocket/emac-drivers/TARGET_GD_EMAC/gd32xx_emac.h
+++ b/features/netsocket/emac-drivers/TARGET_GD_EMAC/gd32xx_emac.h
@@ -2,6 +2,8 @@
 /* mbed Microcontroller Library
  * Copyright (c) 2018 Gigadevice Semiconductor Inc.
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at