diff --git a/railties/lib/rails/api/task.rb b/railties/lib/rails/api/task.rb
index 1f9568fb5f50b9880fc77126a4539ae3641038dd..3e32576040a5ffebf5fc95fde95670bf1ce81e98 100644
--- a/railties/lib/rails/api/task.rb
+++ b/railties/lib/rails/api/task.rb
@@ -16,8 +16,7 @@ class Task < RDoc::Task
           :include => %w(
             README.rdoc
             lib/active_record/**/*.rb
-          ),
-          :exclude => 'lib/active_record/vendor/*'
+          )
         },
 
         'activemodel' => {
@@ -33,23 +32,22 @@ class Task < RDoc::Task
             lib/abstract_controller/**/*.rb
             lib/action_controller/**/*.rb
             lib/action_dispatch/**/*.rb
-          ),
-          :exclude => 'lib/action_controller/vendor/*'
+          )
         },
 
         'actionview' => {
           :include => %w(
             README.rdoc
             lib/action_view/**/*.rb
-          )
+          ),
+          :exclude => 'lib/action_view/vendor/*'
         },
 
         'actionmailer' => {
           :include => %w(
             README.rdoc
             lib/action_mailer/**/*.rb
-          ),
-          :exclude => 'lib/action_mailer/vendor/*'
+          )
         },
 
         'railties' => {