diff --git a/include/xbps.h.in b/include/xbps.h.in
index 6cd53284..c410554c 100644
--- a/include/xbps.h.in
+++ b/include/xbps.h.in
@@ -1,5 +1,7 @@
 /*-
- * Copyright (c) 2008-2019 Juan Romero Pardines.
+ * Copyright (c) 2008-2019 Juan Romero Pardines <xtraeme@gmail.com>
+ * Copyright (c) 2014-2019 Enno Boland <gottox@voidlinux.org>
+ * Copyright (c) 2016-2019 Duncan Overbruck <mail@duncano.de>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without