diff --git a/util/nvmutil/AUTHORS b/util/nvmutil/AUTHORS
index f3c0038..f38ea21 100644
--- a/util/nvmutil/AUTHORS
+++ b/util/nvmutil/AUTHORS
@@ -1 +1,2 @@
 Leah Rowe
+Riku Viitanen
diff --git a/util/nvmutil/COPYING b/util/nvmutil/COPYING
index 784581d..a6ecf26 100644
--- a/util/nvmutil/COPYING
+++ b/util/nvmutil/COPYING
@@ -1,4 +1,5 @@
-Copyright (C) 2022, 2023 Leah Rowe <leah@libreboot.org>
+Copyright (C) 2022-2025 Leah Rowe <leah@libreboot.org>
+Copyright (c) 2023 Riku Viitanen <riku.viitanen@protonmail.com>
 
 Permission is hereby granted, free of charge, to any person obtaining a
 copy of this software and associated documentation files (the