test/controller/render_test.rb:650: trailing whitespace.
+  
test/controller/render_test.rb:1466: trailing whitespace.
+  



diff --git a/lib/action_view/partials.rb b/lib/action_view/partials.rb
index 9e5e0f7..d6b8600 100644
--- a/lib/action_view/partials.rb
+++ b/lib/action_view/partials.rb
@@ -218,6 +218,7 @@ module ActionView
             ActionController::RecordIdentifier.partial_path(object, controller.class.controller_path)
           template = _pick_partial_template(_partial_path)
           local_assigns[template.counter_name] = index
+          local_assigns["#{as}_counter".to_sym] = index if as
           result = template.render_partial(self, object, local_assigns.dup, as)
           index += 1
           result
diff --git a/test/controller/render_test.rb b/test/controller/render_test.rb
index a529315..fb89140 100644
--- a/test/controller/render_test.rb
+++ b/test/controller/render_test.rb
@@ -647,6 +647,10 @@ class TestController < ActionController::Base
   def partial_collection_with_counter
     render :partial => "customer_counter", :collection => [ Customer.new("david"), Customer.new("mary") ]
   end
+  
+  def partial_collection_with_counter_and_as
+    render :partial => "customer_counter_with_var", :collection => [ Customer.new("david"), Customer.new("mary") ], :as => :customer
+  end
 
   def partial_collection_with_locals
     render :partial => "customer_greeting", :collection => [ Customer.new("david"), Customer.new("mary") ], :locals => { :greeting => "Bonjour" }
@@ -1459,6 +1463,11 @@ class RenderTest < ActionController::TestCase
     get :partial_collection_with_counter
     assert_equal "david0mary1", @response.body
   end
+  
+  def test_partial_collection_with_counter_and_as
+    get :partial_collection_with_counter_and_as
+    assert_equal "david david david 0 0mary mary mary 1 1", @response.body
+  end
 
   def test_partial_collection_with_locals
     get :partial_collection_with_locals
diff --git a/test/fixtures/test/_customer_counter_with_var.erb b/test/fixtures/test/_customer_counter_with_var.erb
new file mode 100644
index 0000000..8420c5f
--- /dev/null
+++ b/test/fixtures/test/_customer_counter_with_var.erb
@@ -0,0 +1 @@
+<%= customer.name %> <%= object.name %> <%= customer_counter_with_var.name %> <%= customer_counter %> <%= customer_counter_with_var_counter %>
\ No newline at end of file