diff --git a/Rakefile b/Rakefile
index 309ea077..97b4b62d 100644
--- a/Rakefile
+++ b/Rakefile
@@ -20,6 +20,6 @@ Rake::RDocTask.new(:rdoc) do |rdoc|
   rdoc.rdoc_dir = 'rdoc'
   rdoc.title    = 'SimpleForm'
   rdoc.options << '--line-numbers' << '--inline-source'
-  rdoc.rdoc_files.include('README')
+  rdoc.rdoc_files.include('README.rdoc')
   rdoc.rdoc_files.include('lib/**/*.rb')
 end
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