diff --git a/actionpack/Rakefile b/actionpack/Rakefile
index a41b5636b0..23db84b986 100644
--- a/actionpack/Rakefile
+++ b/actionpack/Rakefile
@@ -54,7 +54,9 @@ Rake::RDocTask.new { |rdoc|
     rdoc.rdoc_files.include(ENV['DOC_FILES'].split(/,\s*/))
   else
     rdoc.rdoc_files.include('README', 'RUNNING_UNIT_TESTS', 'CHANGELOG')
-    rdoc.rdoc_files.include(Dir['lib/**/*.rb'] - Dir['lib/*/vendor/**/*.rb'])
+    rdoc.rdoc_files.include(Dir['lib/**/*.rb'] -
+                            Dir['lib/*/vendor/**/*.rb'] -
+                            ['lib/actionpack.rb'])
   end
 }