diff --git a/actionpack/lib/action_controller/metal/live.rb b/actionpack/lib/action_controller/metal/live.rb
index 67875141cb7de28d28a5858a0053ccd62600e469..706ce04062fb2e043d78214fad1ccbc55e70047e 100644
--- a/actionpack/lib/action_controller/metal/live.rb
+++ b/actionpack/lib/action_controller/metal/live.rb
@@ -205,7 +205,7 @@ def call_on_error
     end
 
     class Response < ActionDispatch::Response #:nodoc: all
-      class Header < DelegateClass(Hash)
+      class Header < DelegateClass(Hash) # :nodoc:
         def initialize(response, header)
           @response = response
           super(header)
diff --git a/railties/lib/rails/test_unit/sub_test_task.rb b/railties/lib/rails/test_unit/sub_test_task.rb
index d9bffba4d7a261efc495aa0b20ac70165b3113c6..6fa96d2ced108405b31fb6b15cdacdb04d472472 100644
--- a/railties/lib/rails/test_unit/sub_test_task.rb
+++ b/railties/lib/rails/test_unit/sub_test_task.rb
@@ -7,7 +7,7 @@ class TestTask < Rake::TestTask # :nodoc: all
     #
     # This class takes a TestInfo class and defines the appropriate rake task
     # based on the information, then invokes it.
-    class TestCreator
+    class TestCreator # :nodoc:
       def initialize(info)
         @info = info
       end
@@ -41,7 +41,7 @@ def reset_application_tasks
     # to test files (or can be transformed into test files). Calling <tt>files</tt>
     # provides the set of test files and is used when initializing tests after
     # a call to <tt>rake test</tt>.
-    class TestInfo
+    class TestInfo # :nodoc:
       def initialize(tasks)
         @tasks = tasks
         @files = nil