diff --git a/after/ftplugin/requirements.vim b/after/ftplugin/requirements.vim
index 0de1ec8..edf40f8 100644
--- a/after/ftplugin/requirements.vim
+++ b/after/ftplugin/requirements.vim
@@ -1,3 +1,28 @@
+" the Requirements File Format syntax support for Vim
+" Version: 1.5.3
+" Author:  raimon <raimon49@hotmail.com>
+" License: MIT LICENSE
+" The MIT License (MIT)
+"
+" Copyright (c) 2015 raimon
+"
+" 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
+" to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+" copies of the Software, and to permit persons to whom the Software is
+" furnished to do so, subject to the following conditions:
+"
+" The above copyright notice and this permission notice shall be included in all
+" copies or substantial portions of the Software.
+"
+" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+" IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+" FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+" AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+" LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+" OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+" SOFTWARE.
 if executable('pip-compile')
     let s:filename = expand("%:p")
     if fnamemodify(s:filename, ":t") ==# 'requirements.in'