diff --git a/lib/minitest/matchers.rb b/lib/minitest/matchers.rb
index 870c770..2957f12 100644
--- a/lib/minitest/matchers.rb
+++ b/lib/minitest/matchers.rb
@@ -196,7 +196,3 @@ def self.register_matcher matcher, name, exp_name=name
     Object.infect_an_assertion :"refute_#{name}", :"wont_#{exp_name}", true
   end
 end
-
-class Minitest::Spec # :nodoc:
-  include Minitest::Matchers
-end