diff --git a/lib/twine/formatters.rb b/lib/twine/formatters.rb
index 6275526..d75b1c1 100644
--- a/lib/twine/formatters.rb
+++ b/lib/twine/formatters.rb
@@ -19,6 +19,7 @@ module Twine
   end
 end
 
+require File.join(File.dirname(__FILE__), 'formatters', 'abstract.rb')
 Dir[File.join(File.dirname(__FILE__), 'formatters', '*.rb')].each do |file|
   require file
 end