diff --git a/actionpack/lib/action_dispatch/routing/mapper.rb b/actionpack/lib/action_dispatch/routing/mapper.rb
index cc3ed169d85f..5a3868e1d453 100644
--- a/actionpack/lib/action_dispatch/routing/mapper.rb
+++ b/actionpack/lib/action_dispatch/routing/mapper.rb
@@ -479,7 +479,7 @@ def resource(*resources, &block)
           scope(:path => resource.name.to_s, :controller => resource.controller) do
             with_scope_level(:resource, resource) do
 
-              scope(:name_prefix => resource.name.to_s) do
+              scope(:name_prefix => resource.name.to_s, :as => "") do
                 yield if block_given?
               end
 
diff --git a/actionpack/test/dispatch/routing_test.rb b/actionpack/test/dispatch/routing_test.rb
index cbe9b5488c27..c4e71a868969 100644
--- a/actionpack/test/dispatch/routing_test.rb
+++ b/actionpack/test/dispatch/routing_test.rb
@@ -25,6 +25,7 @@ def self.matches?(request)
 
       resource :session do
         get :create
+        post :reset
 
         resource :info
       end
@@ -247,6 +248,10 @@ def test_session_singleton_resource
       get '/session/edit'
       assert_equal 'sessions#edit', @response.body
       assert_equal '/session/edit', edit_session_path
+
+      post '/session/reset'
+      assert_equal 'sessions#reset', @response.body
+      assert_equal '/session/reset', reset_session_path
     end
   end