diff --git a/CMakeLists.txt b/CMakeLists.txt
index b5d7d191..ef2ffebd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,2 +1,8 @@
+# Makefile - STM32Cube SDK
+#
+# Copyright (c) 2020 Linaro Limited
+#
+# SPDX-License-Identifier: Apache-2.0
+
 add_subdirectory_ifdef(CONFIG_HAS_STM32CUBE stm32cube)
 add_subdirectory_ifdef(CONFIG_HAS_STM32LIB lib)
diff --git a/scripts/make_stm32_module.py b/scripts/make_stm32_module.py
index 05954e17..7c1b2731 100644
--- a/scripts/make_stm32_module.py
+++ b/scripts/make_stm32_module.py
@@ -1,5 +1,6 @@
 #!/usr/bin/python
 
+# SPDX-License-Identifier: Apache-2.0
 # Copyright (c) 2019 STMicroelectronics.
 # This script will build module, readme and CMakelists.txt files
 # to use with zephyr_module.py
@@ -158,7 +159,7 @@ def makelist(make_serie):
         make_file.close()
         os.remove(os.path.join('./stm32cube', make_seriexx, 'CMakeLists.txt'))
     else:
-        first_line = '' 
+        first_line = ''
 
     print 'Create a new CMakeLists.txt file'
 
diff --git a/scripts/update_stm32_package.py b/scripts/update_stm32_package.py
index 974a2ccb..1616782c 100644
--- a/scripts/update_stm32_package.py
+++ b/scripts/update_stm32_package.py
@@ -1,5 +1,6 @@
 #!/usr/bin/python
 
+# SPDX-License-Identifier: Apache-2.0
 # Copyright (c) 2019 STMicroelectronics.
 # This script will update the stm32cube module for Zephyr
 # from the latest version on https://github.com/STMicroelectronics
@@ -283,7 +284,7 @@ if os.system(git_cmd):
     print "Error when applying patch to zephyr module: see "+os.path.join(module_path, module_log)
 else:
     option_force = True
- 
+
 # 7.3) add files but do not commit
 os.system('git add * && git reset -- *.patch && git reset -- *.log && git reset -- *.rej')
 print "README file : --> please check that the Patch list is still valid"