diff --git a/lib/nested_form/view_helper.rb b/lib/nested_form/view_helper.rb
index 3e3202a5..365e900d 100644
--- a/lib/nested_form/view_helper.rb
+++ b/lib/nested_form/view_helper.rb
@@ -4,25 +4,20 @@ module NestedForm
   module ViewHelper
     def nested_form_for(*args, &block)
       options = args.extract_options!.reverse_merge(:builder => NestedForm::Builder)
-      output = form_for(*(args << options), &block)
-      @after_nested_form_callbacks ||= []
-      fields = @after_nested_form_callbacks.map do |callback|
-        callback.call
-      end
-      output << fields.join(" ").html_safe
+      form_for(*(args << options), &block) << after_nested_form_callbacks
     end
     
     if defined?(NestedForm::SimpleBuilder)
       def simple_nested_form_for(*args, &block)
         options = args.extract_options!.reverse_merge(:builder => NestedForm::SimpleBuilder)
-        nested_form_for(*(args << options), &block)
+        simple_form_for(*(args << options), &block) << after_nested_form_callbacks
       end
     end
     
     if defined?(NestedForm::FormtasticBuilder)
       def semantic_nested_form_for(*args, &block)
         options = args.extract_options!.reverse_merge(:builder => NestedForm::FormtasticBuilder)
-        nested_form_for(*(args << options), &block)
+        semantic_form_for(*(args << options), &block) << after_nested_form_callbacks
       end
     end
 
@@ -34,5 +29,14 @@ def after_nested_form(association, &block)
         @after_nested_form_callbacks << block
       end
     end
+    
+    private
+      def after_nested_form_callbacks
+        @after_nested_form_callbacks ||= []
+        fields = @after_nested_form_callbacks.map do |callback|
+          callback.call
+        end
+        fields.join(" ").html_safe
+      end
   end
 end