diff --git a/actionwebservice/CHANGELOG b/actionwebservice/CHANGELOG
index 9f6abfdc5d..d630b13e44 100644
--- a/actionwebservice/CHANGELOG
+++ b/actionwebservice/CHANGELOG
@@ -1,5 +1,7 @@
 *SVN*
 
+* Fix Scaffold Fails with Struct as a Parameter #4363 [joe@mjg2.com]
+
 * Fix soap type registration of multidimensional arrays (#4232)
 
 * Fix that marshaler couldn't handle ActiveRecord models defined in a different namespace (#2392).
diff --git a/actionwebservice/lib/action_web_service/scaffolding.rb b/actionwebservice/lib/action_web_service/scaffolding.rb
index 3f958df3ab..21689da990 100644
--- a/actionwebservice/lib/action_web_service/scaffolding.rb
+++ b/actionwebservice/lib/action_web_service/scaffolding.rb
@@ -187,7 +187,8 @@ module ActionWebService
             nested_content = method_parameter_input_fields(
               method,
               member_type,
-              "#{field_name_base}[#{idx}][#{member_name}]")
+              "#{field_name_base}[#{idx}][#{member_name}]",
+              idx)
             if member_type.custom?
               parameters << content_tag('li', label)
               parameters << content_tag('ul', nested_content)
diff --git a/actionwebservice/test/scaffolded_controller_test.rb b/actionwebservice/test/scaffolded_controller_test.rb
index b41d5afe09..0aa034c3b4 100644
--- a/actionwebservice/test/scaffolded_controller_test.rb
+++ b/actionwebservice/test/scaffolded_controller_test.rb
@@ -18,6 +18,7 @@ end
 
 class ScaffoldedControllerTestAPI < ActionWebService::API::Base
   api_method :hello, :expects => [{:integer=>:int}, :string], :returns => [:bool]
+  api_method :hello_struct_param, :expects => [{:person => ScaffoldPerson}], :returns => [:bool]
   api_method :bye,   :returns => [[ScaffoldPerson]]
   api_method :date_diff, :expects => [{:start_date => :date}, {:end_date => :date}], :returns => [:int]
   api_method :time_diff, :expects => [{:start_time => :time}, {:end_time => :time}], :returns => [:int]
@@ -31,6 +32,10 @@ class ScaffoldedController < ActionController::Base
   def hello(int, string)
     0
   end
+  
+  def hello_struct_param(person)
+    0
+  end
 
   def bye
     [ScaffoldPerson.new(:id => 1, :name => "leon"), ScaffoldPerson.new(:id => 2, :name => "paul")]
@@ -69,6 +74,11 @@ class ScaffoldedControllerTest < Test::Unit::TestCase
     get :scaffold_invoke_method_params, :service => 'scaffolded', :method => 'Hello'
     assert_rendered_file 'parameters.rhtml'
   end
+  
+  def test_scaffold_invoke_method_params_with_struct
+    get :scaffold_invoke_method_params, :service => 'scaffolded', :method => 'HelloStructParam'
+    assert_rendered_file 'parameters.rhtml'
+  end
 
   def test_scaffold_invoke_submit_hello
     post :scaffold_invoke_submit, :service => 'scaffolded', :method => 'Hello', :method_params => {'0' => '5', '1' => 'hello world'}