diff --git a/LICENSE.md b/LICENSE.md
index 197e961a7..8d1e8f47f 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -1,5 +1,7 @@
 MIT License
 
+Copyright (c) 2014-2016 Yanis Wang <yanis.wang@gmail.com>
+
 Copyright (c) 2018 David Dias (Thanks to the initial contributor Yanis Wan)
 
 Permission is hereby granted, free of charge, to any person obtaining a copy