diff --git a/common/.clang-format b/common/.clang-format
index 537bac562..1c493308f 100644
--- a/common/.clang-format
+++ b/common/.clang-format
@@ -1,3 +1,6 @@
+# Author: Steffen Vogel <steffen.vogel@opal-rt.com>
+# SPDX-FileCopyrightText: 2023 OPAL-RT Germany GmbH
+# SPDX-License-Identifier: Apache-2.0
 ---
 BasedOnStyle: LLVM
 
diff --git a/common/.git-blame-ignore-revs b/common/.git-blame-ignore-revs
index 0a44c1b36..e4ae32016 100644
--- a/common/.git-blame-ignore-revs
+++ b/common/.git-blame-ignore-revs
@@ -1,3 +1,7 @@
+# Author: Steffen Vogel <steffen.vogel@opal-rt.com>
+# SPDX-FileCopyrightText: 2023 OPAL-RT Germany GmbH
+# SPDX-License-Identifier: Apache-2.0
+
 # Introduced clang-format
 b328a558ea17d60012c0fe31d0f4f9dfa4b8a10b