diff --git a/sys/boot/amd64/boot1.efi/boot1.c b/sys/boot/amd64/boot1.efi/boot1.c
index 8b3fb2290f0f..2d91889ec84b 100644
--- a/sys/boot/amd64/boot1.efi/boot1.c
+++ b/sys/boot/amd64/boot1.efi/boot1.c
@@ -3,6 +3,8 @@
  * All rights reserved.
  * Copyright (c) 2001 Robert Drehmel
  * All rights reserved.
+ * Copyright (c) 2014 Nathan Whitehorn
+ * All rights reserved.
  *
  * Redistribution and use in source and binary forms are freely
  * permitted provided that the above copyright notice and this