diff --git a/actionpack/test/abstract_unit.rb b/actionpack/test/abstract_unit.rb
index <HASH>..<HASH> 100644
--- a/actionpack/test/abstract_unit.rb
+++ b/actionpack/test/abstract_unit.rb
@@ -11,8 +11,6 @@ ensure_requirable %w( rack rack/test sqlite3 )
 
 ENV['TMPDIR'] = File.join(File.dirname(__FILE__), 'tmp')
 
-ENV['new_base'] = "true"
-
 require 'test/unit'
 require 'active_support'
 require 'active_support/test_case'
@@ -192,7 +190,6 @@ module ActionController
   end
 end
 
-
 class SimpleRouteCase < Rack::TestCase
   setup do
     ActionController::Routing::Routes.draw do |map|
All on one base, don't need this