diff --git a/platform/ScopedRamExecutionLock.h b/platform/ScopedRamExecutionLock.h
index abbf106cfe..0f7cadd738 100644
--- a/platform/ScopedRamExecutionLock.h
+++ b/platform/ScopedRamExecutionLock.h
@@ -1,5 +1,6 @@
 /* mbed Microcontroller Library
  * Copyright (c) 2018-2019 ARM Limited
+ * 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.
diff --git a/platform/ScopedRomWriteLock.h b/platform/ScopedRomWriteLock.h
index ad1b52e26c..5ebdd12e3a 100644
--- a/platform/ScopedRomWriteLock.h
+++ b/platform/ScopedRomWriteLock.h
@@ -1,5 +1,6 @@
 /* mbed Microcontroller Library
  * Copyright (c) 2018-2019 ARM Limited
+ * 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.
diff --git a/platform/mbed_mpu_mgmt.h b/platform/mbed_mpu_mgmt.h
index 34f289165f..aa08668076 100644
--- a/platform/mbed_mpu_mgmt.h
+++ b/platform/mbed_mpu_mgmt.h
@@ -1,5 +1,6 @@
 /* mbed Microcontroller Library
  * Copyright (c) 2006-2019 ARM Limited
+ * SPDX-License-Identifier: Apache-2.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/platform/source/TARGET_CORTEX_M/mbed_fault_handler.c b/platform/source/TARGET_CORTEX_M/mbed_fault_handler.c
index 293742fd89..ce860fc9b0 100644
--- a/platform/source/TARGET_CORTEX_M/mbed_fault_handler.c
+++ b/platform/source/TARGET_CORTEX_M/mbed_fault_handler.c
@@ -1,5 +1,6 @@
 /* mbed Microcontroller Library
  * Copyright (c) 2006-2018 ARM Limited
+ * 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.
diff --git a/platform/source/TARGET_CORTEX_M/mbed_fault_handler.h b/platform/source/TARGET_CORTEX_M/mbed_fault_handler.h
index 655bce06a8..2df44266a9 100644
--- a/platform/source/TARGET_CORTEX_M/mbed_fault_handler.h
+++ b/platform/source/TARGET_CORTEX_M/mbed_fault_handler.h
@@ -1,5 +1,6 @@
 /* mbed Microcontroller Library
  * Copyright (c) 2006-2018 ARM Limited
+ * 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.
diff --git a/platform/source/mbed_crash_data_offsets.h b/platform/source/mbed_crash_data_offsets.h
index c29f5cd3d8..41c9c59acc 100644
--- a/platform/source/mbed_crash_data_offsets.h
+++ b/platform/source/mbed_crash_data_offsets.h
@@ -1,5 +1,6 @@
 /* mbed Microcontroller Library
  * Copyright (c) 2006-2019 ARM Limited
+ * 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.
diff --git a/platform/source/mbed_mpu_mgmt.c b/platform/source/mbed_mpu_mgmt.c
index ebdfb2d5fa..0e050d86ae 100644
--- a/platform/source/mbed_mpu_mgmt.c
+++ b/platform/source/mbed_mpu_mgmt.c
@@ -1,5 +1,6 @@
 /* mbed Microcontroller Library
  * Copyright (c) 2018-2019 ARM Limited
+ * 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.
diff --git a/platform/source/minimal-printf/mbed_printf_armlink_overrides.c b/platform/source/minimal-printf/mbed_printf_armlink_overrides.c
index ca7201db40..02a7ce8cd0 100644
--- a/platform/source/minimal-printf/mbed_printf_armlink_overrides.c
+++ b/platform/source/minimal-printf/mbed_printf_armlink_overrides.c
@@ -1,5 +1,6 @@
 /* mbed Microcontroller Library
  * Copyright (c) 2019 ARM Limited
+ * 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.
@@ -387,4 +388,4 @@ int $Sub$$_printf_x(const char *format, ...)
 
 #endif
 
-#endif // MBED_MINIMAL_PRINTF
\ No newline at end of file
+#endif // MBED_MINIMAL_PRINTF
diff --git a/platform/source/minimal-printf/mbed_printf_implementation.c b/platform/source/minimal-printf/mbed_printf_implementation.c
index ea18edd46c..b62566fe8c 100644
--- a/platform/source/minimal-printf/mbed_printf_implementation.c
+++ b/platform/source/minimal-printf/mbed_printf_implementation.c
@@ -1,5 +1,6 @@
 /* mbed Microcontroller Library
  * Copyright (c) 2017 ARM Limited
+ * 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.
diff --git a/platform/source/minimal-printf/mbed_printf_implementation.h b/platform/source/minimal-printf/mbed_printf_implementation.h
index 2017b1db7a..411893c97d 100644
--- a/platform/source/minimal-printf/mbed_printf_implementation.h
+++ b/platform/source/minimal-printf/mbed_printf_implementation.h
@@ -1,5 +1,6 @@
 /* mbed Microcontroller Library
  * Copyright (c) 2017 ARM Limited
+ * 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.
diff --git a/platform/source/minimal-printf/mbed_printf_wrapper.c b/platform/source/minimal-printf/mbed_printf_wrapper.c
index f50cf52c03..04a4c399f5 100644
--- a/platform/source/minimal-printf/mbed_printf_wrapper.c
+++ b/platform/source/minimal-printf/mbed_printf_wrapper.c
@@ -1,5 +1,6 @@
 /* mbed Microcontroller Library
  * Copyright (c) 2017 ARM Limited
+ * 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.