diff --git a/railties/guides/rails_guides/textile_extensions.rb b/railties/guides/rails_guides/textile_extensions.rb
index 504b527398..b22be5752d 100644
--- a/railties/guides/rails_guides/textile_extensions.rb
+++ b/railties/guides/rails_guides/textile_extensions.rb
@@ -1,5 +1,5 @@
 module RailsGuides
-  module TextileExtensions    
+  module TextileExtensions
     def notestuff(body)
       body.gsub!(/^(IMPORTANT|CAUTION|WARNING|NOTE|INFO)(?:\.|\:)(.*)$/) do |m|
         css_class = $1.downcase