diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
index 005d2ad..f9cde38 100644
--- a/.git-blame-ignore-revs
+++ b/.git-blame-ignore-revs
@@ -1,2 +1,4 @@
+# SPDX-License-Identifier: CC0-1.0
+# SPDX-FileCopyrightText: none
 # clang-format
 f42903a9670e84644b04a3dae99ba2265e572901