diff --git a/railties/guides/source/plugins.textile b/railties/guides/source/plugins.textile
index fc7c1e26259176feb68b0866a72652d0affc1b74..a12434a95b0e7f52d4707b6a54a860f25dcd4662 100644
--- a/railties/guides/source/plugins.textile
+++ b/railties/guides/source/plugins.textile
@@ -205,7 +205,7 @@ def load_schema
 
   ActiveRecord::Base.establish_connection(config[db_adapter])
   load(File.dirname(__FILE__) + "/schema.rb")
-  require File.dirname(__FILE__) + '/../rails/init.rb'
+  require File.dirname(__FILE__) + '/../rails/init'
 end
 </ruby>
 
@@ -218,7 +218,7 @@ Once you have these files in place, you can write your first test to ensure that
 <ruby>
 # vendor/plugins/yaffle/test/yaffle_test.rb
 
-require File.dirname(__FILE__) + '/test_helper.rb'
+require File.dirname(__FILE__) + '/test_helper'
 
 class YaffleTest < Test::Unit::TestCase
   load_schema
@@ -284,7 +284,7 @@ In this example you will add a method to String named +to_squawk+.  To begin, cr
 <ruby>
 # vendor/plugins/yaffle/test/core_ext_test.rb
 
-require File.dirname(__FILE__) + '/test_helper.rb'
+require File.dirname(__FILE__) + '/test_helper'
 
 class CoreExtTest < Test::Unit::TestCase
   def test_to_squawk_prepends_the_word_squawk
@@ -311,7 +311,7 @@ NoMethodError: undefined method `to_squawk' for "Hello World":String
 
 Great - now you are ready to start development.
 
-Then in +lib/yaffle.rb+ require +lib/core_ext.rb+:
+Then in +lib/yaffle.rb+ require +lib/core_ext+:
 
 <ruby>
 # vendor/plugins/yaffle/lib/yaffle.rb
@@ -380,7 +380,7 @@ To begin, set up your files so that you have:
 * *vendor/plugins/yaffle/test/acts_as_yaffle_test.rb*
 
 <ruby>
-require File.dirname(__FILE__) + '/test_helper.rb'
+require File.dirname(__FILE__) + '/test_helper'
 
 class ActsAsYaffleTest < Test::Unit::TestCase
 end
@@ -436,7 +436,7 @@ To start out, write a failing test that shows the behavior you'd like:
 * *vendor/plugins/yaffle/test/acts_as_yaffle_test.rb*
 
 <ruby>
-require File.dirname(__FILE__) + '/test_helper.rb'
+require File.dirname(__FILE__) + '/test_helper'
 
 class Hickwall < ActiveRecord::Base
   acts_as_yaffle
@@ -489,7 +489,7 @@ To start out, write a failing test that shows the behavior you'd like:
 * *vendor/plugins/yaffle/test/acts_as_yaffle_test.rb*
 
 <ruby>
-require File.dirname(__FILE__) + '/test_helper.rb'
+require File.dirname(__FILE__) + '/test_helper'
 
 class Hickwall < ActiveRecord::Base
   acts_as_yaffle
@@ -579,7 +579,7 @@ As always, start with a test:
 * *vendor/plugins/yaffle/test/woodpecker_test.rb:*
 
 <ruby>
-require File.dirname(__FILE__) + '/test_helper.rb'
+require File.dirname(__FILE__) + '/test_helper'
 
 class WoodpeckerTest < Test::Unit::TestCase
   load_schema
@@ -633,7 +633,7 @@ You can test your plugin's controller as you would test any other controller:
 * *vendor/plugins/yaffle/test/woodpeckers_controller_test.rb:*
 
 <ruby>
-require File.dirname(__FILE__) + '/test_helper.rb'
+require File.dirname(__FILE__) + '/test_helper'
 require 'woodpeckers_controller'
 require 'action_controller/test_process'
 
@@ -693,7 +693,7 @@ You can test your plugin's helper as you would test any other helper:
 * *vendor/plugins/yaffle/test/woodpeckers_helper_test.rb*
 
 <ruby>
-require File.dirname(__FILE__) + '/test_helper.rb'
+require File.dirname(__FILE__) + '/test_helper'
 include WoodpeckersHelper
 
 class WoodpeckersHelperTest < Test::Unit::TestCase
@@ -816,7 +816,7 @@ This section will describe how to create a simple generator that adds a file.  F
 * *vendor/plugins/yaffle/test/definition_generator_test.rb*
 
 <ruby>
-require File.dirname(__FILE__) + '/test_helper.rb'
+require File.dirname(__FILE__) + '/test_helper'
 require 'rails_generator'
 require 'rails_generator/scripts/generate'
 
@@ -990,7 +990,7 @@ To start, add the following test method:
 * *vendor/plugins/yaffle/test/route_generator_test.rb*
 
 <ruby>
-require File.dirname(__FILE__) + '/test_helper.rb'
+require File.dirname(__FILE__) + '/test_helper'
 require 'rails_generator'
 require 'rails_generator/scripts/generate'
 require 'rails_generator/scripts/destroy'
@@ -1205,7 +1205,7 @@ This example will demonstrate how to use one of the built-in generator methods n
 * *vendor/plugins/yaffle/test/yaffle_migration_generator_test.rb*
 
 <ruby>
-require File.dirname(__FILE__) + '/test_helper.rb'
+require File.dirname(__FILE__) + '/test_helper'
 require 'rails_generator'
 require 'rails_generator/scripts/generate'