diff --git a/runtime/autoload/hcl.vim b/runtime/autoload/hcl.vim
index 2215fc8..e45a4e3 100644
--- a/runtime/autoload/hcl.vim
+++ b/runtime/autoload/hcl.vim
@@ -2,6 +2,21 @@
 " Maintainer:  Gregory Anders
 " Last Change: 2024-09-03
 " Based on:    https://github.com/hashivim/vim-terraform
+" License:     ISC
+"
+" Copyright (c) 2014-2016 Mark Cornick <mark@markcornick.com>
+"
+" Permission to use, copy, modify, and/or distribute this software for any purpose
+" with or without fee is hereby granted, provided that the above copyright notice
+" and this permission notice appear in all copies.
+"
+" THE SOFTWARE IS PROVIDED 'AS IS' AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+" REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+" FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+" INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+" OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+" TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
+" THIS SOFTWARE.
 
 function! hcl#indentexpr(lnum)
   " Beginning of the file should have no indent
diff --git a/runtime/ftplugin/hcl.vim b/runtime/ftplugin/hcl.vim
index c47a037..57578c0 100644
--- a/runtime/ftplugin/hcl.vim
+++ b/runtime/ftplugin/hcl.vim
@@ -1,7 +1,7 @@
 " Vim filetype plugin
-" Language:	HCL
-" Maintainer:	Gregory Anders
-" Last Change:	2024-09-03
+" Language:     HCL
+" Maintainer:   Gregory Anders
+" Last Change:  2024-09-03
 
 if exists('b:did_ftplugin')
   finish
diff --git a/runtime/indent/hcl.vim b/runtime/indent/hcl.vim
index b13d2c5..d6b8b1a 100644
--- a/runtime/indent/hcl.vim
+++ b/runtime/indent/hcl.vim
@@ -2,7 +2,22 @@
 " Language:    HCL
 " Maintainer:  Gregory Anders
 " Upstream:    https://github.com/hashivim/vim-terraform
+" License:     ISC
 " Last Change: 2024-09-03
+"
+" Copyright (c) 2014-2016 Mark Cornick <mark@markcornick.com>
+"
+" Permission to use, copy, modify, and/or distribute this software for any purpose
+" with or without fee is hereby granted, provided that the above copyright notice
+" and this permission notice appear in all copies.
+"
+" THE SOFTWARE IS PROVIDED 'AS IS' AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+" REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+" FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+" INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+" OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+" TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
+" THIS SOFTWARE.
 
 if exists('b:did_indent')
   finish
diff --git a/runtime/syntax/hcl.vim b/runtime/syntax/hcl.vim
index 5e9349a..fc1fc5a 100644
--- a/runtime/syntax/hcl.vim
+++ b/runtime/syntax/hcl.vim
@@ -3,6 +3,21 @@
 " Maintainer:  Gregory Anders
 " Upstream:    https://github.com/hashivim/vim-terraform
 " Last Change: 2024-09-03
+" License:     ISC
+"
+" Copyright (c) 2014-2016 Mark Cornick <mark@markcornick.com>
+"
+" Permission to use, copy, modify, and/or distribute this software for any purpose
+" with or without fee is hereby granted, provided that the above copyright notice
+" and this permission notice appear in all copies.
+"
+" THE SOFTWARE IS PROVIDED 'AS IS' AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+" REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+" FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+" INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+" OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+" TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
+" THIS SOFTWARE.
 
 if exists('b:current_syntax')
   finish
diff --git a/runtime/syntax/terraform.vim b/runtime/syntax/terraform.vim
index 559dc79..1be5698 100644
--- a/runtime/syntax/terraform.vim
+++ b/runtime/syntax/terraform.vim
@@ -3,6 +3,21 @@
 " Maintainer:  Gregory Anders
 " Upstream:    https://github.com/hashivim/vim-terraform
 " Last Change: 2024-09-03
+" License:     ISC
+"
+" Copyright (c) 2014-2016 Mark Cornick <mark@markcornick.com>
+"
+" Permission to use, copy, modify, and/or distribute this software for any purpose
+" with or without fee is hereby granted, provided that the above copyright notice
+" and this permission notice appear in all copies.
+"
+" THE SOFTWARE IS PROVIDED 'AS IS' AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+" REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+" FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+" INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+" OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+" TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
+" THIS SOFTWARE.
 
 if exists('b:current_syntax')
   finish