diff --git a/app/controllers/post_versions_controller.rb b/app/controllers/post_versions_controller.rb
index 0caf636cf..e49c5a760 100644
--- a/app/controllers/post_versions_controller.rb
+++ b/app/controllers/post_versions_controller.rb
@@ -1,7 +1,10 @@
 class PostVersionsController < ApplicationController
+  respond_to :html, :xml, :json
+
   def index
     @search = PostVersion.search(params[:search])
     @post_versions = @search.order("id desc").paginate(params[:page])
+    respond_with(@post_versions)
   end
   
   def search