diff --git a/lib/validates_timeliness.rb b/lib/validates_timeliness.rb
index 8ea1a80..ced6227 100644
--- a/lib/validates_timeliness.rb
+++ b/lib/validates_timeliness.rb
@@ -2,7 +2,7 @@ require 'validates_timeliness/base'
 require 'validates_timeliness/attribute_methods'
 require 'validates_timeliness/validations'
 require 'validates_timeliness/instance_tag'
-#require 'validates_timeliness/validate_timeliness_matcher'
+require 'validates_timeliness/validate_timeliness_matcher' if ENV['RAILS_ENV'] == 'test'
 
 ActiveRecord::Base.send(:include, ValidatesTimeliness::Base)
 ActiveRecord::Base.send(:include, ValidatesTimeliness::AttributeMethods)