diff --git a/src/asahi/compiler/agx_lower_parallel_copy.c b/src/asahi/compiler/agx_lower_parallel_copy.c
index 5211a5526ed30b95333e452a866f42f9da47bcb4..dab85ed95ad49f9ae937c9fd8ae63a038bfbe44b 100644
--- a/src/asahi/compiler/agx_lower_parallel_copy.c
+++ b/src/asahi/compiler/agx_lower_parallel_copy.c
@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2022 Alyssa Rosenzweig <alyssa@rosenzweig.io>
+ * Copyright (C) 2021 Valve Corporation
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),