diff --git a/doc/NERD_tree.txt b/doc/NERD_tree.txt
index 22502c2..13cf130 100644
--- a/doc/NERD_tree.txt
+++ b/doc/NERD_tree.txt
@@ -33,6 +33,7 @@ CONTENTS                                                   *NERDTree-contents*
     6.The Author..............................|NERDTreeAuthor|
     7.Changelog...............................|NERDTreeChangelog|
     8.Credits.................................|NERDTreeCredits|
+    9.License.................................|NERDTreeLicense|
 
 ==============================================================================
 1. Intro                                                            *NERDTree*
@@ -846,6 +847,7 @@ fridge for later ;)
     - fixed screen jumping bug with when &scrolloff != 0
     - fixed some bugs with copying nodes
     - other random fixes
+    - change license to wtfpl
 
 2.9.0
 
@@ -1083,3 +1085,9 @@ set the NERD tree buffers filetype to 'nerdtree'
 
 Thanks to Piotr Czachur for all his suggestions and testing for the bookmarks
 feature.
+
+==============================================================================
+9. License                                                   *NERDTreeLicense*
+
+The NERD tree is released under the wtfpl.
+See http://sam.zoy.org/wtfpl/COPYING.
diff --git a/plugin/NERD_tree.vim b/plugin/NERD_tree.vim
index 961857e..8498178 100644
--- a/plugin/NERD_tree.vim
+++ b/plugin/NERD_tree.vim
@@ -1,6 +1,15 @@
-" vim global plugin that provides a nice tree explorer
-" Last Change:  17 May 2008
-" Maintainer:   Martin Grenfell <martin_grenfell at msn dot com>
+" ============================================================================
+" File:        NERD_tree.vim
+" Description: vim global plugin that provides a nice tree explorer
+" Maintainer:  Martin Grenfell <martin_grenfell at msn dot com>
+" Last Change: 17 June, 2008
+" License:     This program is free software. It comes without any warranty,
+"              to the extent permitted by applicable law. You can redistribute
+"              it and/or modify it under the terms of the Do What The Fuck You
+"              Want To Public License, Version 2, as published by Sam Hocevar.
+"              See http://sam.zoy.org/wtfpl/COPYING for more details.
+"
+" ============================================================================
 let s:NERD_tree_version = '2.10.0rc1'
 
 " SECTION: Script init stuff {{{1