diff --git a/server/harp_blog.rb b/server/harp_blog.rb
index 4ad0e88..6068cc3 100644
--- a/server/harp_blog.rb
+++ b/server/harp_blog.rb
@@ -114,10 +114,11 @@ class HarpBlog
     end
   end
 
-  def update_post(post, title, body, link)
+  def update_post(post, title, body, link, timestamp = nil)
     post.title = title
     post.body = body
     post.link = link
+    post.timestamp = timestamp if timestamp
     save_post('update post', post)
   end
 
diff --git a/server/server.rb b/server/server.rb
index 3471147..662d451 100755
--- a/server/server.rb
+++ b/server/server.rb
@@ -220,7 +220,7 @@ put '/posts/drafts/:id' do |id|
   title, body, link = @fields.values_at('title', 'body', 'link')
   begin
     if post = blog.get_draft(id)
-      blog.update_post(post, title, body, link)
+      blog.update_post(post, title, body, link, Time.now.to_i)
       status 204
     else
       status 404