diff --git a/COPYRIGHT b/COPYRIGHT
index 6ed40025a..57f22ebf7 100644
--- a/COPYRIGHT
+++ b/COPYRIGHT
@@ -3,6 +3,10 @@ LuaJIT -- a Just-In-Time Compiler for Lua. http://luajit.org/
 
 Copyright (C) 2005-2017 Mike Pall. All rights reserved.
 
+Copyright (C) 2017-2018 Yichun Zhang. All rights reserved.
+
+Copyright (C) 2017-2018 OpenResty Inc. All rights reserved.
+
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
diff --git a/README b/README
index 2b9ae9d22..9b99c8f32 100644
--- a/README
+++ b/README
@@ -6,6 +6,14 @@ LuaJIT is a Just-In-Time (JIT) compiler for the Lua programming language.
 Project Homepage: http://luajit.org/
 
 LuaJIT is Copyright (C) 2005-2017 Mike Pall.
+
+Additional patches for OpenResty are copyrighted by Yichun Zhang and OpenResty
+Inc.:
+
+Copyright (C) 2017-2018 Yichun Zhang. All rights reserved.
+
+Copyright (C) 2017-2018 OpenResty Inc. All rights reserved.
+
 LuaJIT is free software, released under the MIT license.
 See full Copyright Notice in the COPYRIGHT file or in luajit.h.