diff --git a/cmake/env.cmake b/cmake/env.cmake
index 7e58e75821..5df29b45ce 100644
--- a/cmake/env.cmake
+++ b/cmake/env.cmake
@@ -1,3 +1,4 @@
+# Copyright (c) 2020 ARM Limited. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
 # Compiler setup