diff --git a/lib/acts_as_having_posts.rb b/lib/acts_as_having_posts.rb
index 68ef4a7..7c0751f 100644
--- a/lib/acts_as_having_posts.rb
+++ b/lib/acts_as_having_posts.rb
@@ -22,7 +22,7 @@ module ActsAsHavingPosts
   end
 
   def feed
-    Article.where(:parent_id => self.id).where(:type => 'RssFeed').first
+    children.where(:type => 'RssFeed').limit(1)
   end
 
   def feed=(attrs)
--
libgit2 0.21.2