diff --git a/lib/gemspec.rb b/lib/gemspec.rb
index <HASH>..<HASH> 100644
--- a/lib/gemspec.rb
+++ b/lib/gemspec.rb
@@ -1,6 +1,6 @@
 #!/usr/bin/env ruby
 require File.expand_path('../../vendor/refinerycms/refinery.rb', __FILE__)
-files = %w( .gitignore .yardopts Gemfile ).map { |file| Dir[file] }.flatten
+files = %w( .gitignore .yardopts Gemfile readme.md license.md changelog.md todo.md ).map { |file| Dir[file] }.flatten
 %w(app bin config db features lib public script test themes vendor).sort.each do |dir|
   files += Dir.glob("#{dir}/**/*")
 end
Add all documentation to the gem.

license.md is particularly important because if you don't distribute software with a license, then it isn't licensed.