diff --git a/boards/rss.py b/boards/rss.py
--- a/boards/rss.py
+++ b/boards/rss.py
@@ -21,7 +21,7 @@ class AllThreadsFeed(Feed):
         return item.get_opening_post().title
 
     def item_link(self, item):
-        return reverse('thread', args={item.get_opening_post().id})
+        return reverse('thread', args={item.get_opening_post_id()})
 
     def item_pubdate(self, item):
         return item.get_pub_time()
@@ -42,7 +42,7 @@ class TagThreadsFeed(Feed):
         return item.get_opening_post().title
 
     def item_link(self, item):
-        return reverse('thread', args={item.get_opening_post().id})
+        return reverse('thread', args={item.get_opening_post_id()})
 
     def item_pubdate(self, item):
         return item.get_pub_time()
@@ -57,7 +57,7 @@ class ThreadPostsFeed(Feed):
     description_template = 'boards/rss/post.html'
 
     def items(self, obj):
-        return obj.thread_new.get_replies()
+        return obj.get_thread().get_replies()
 
     def get_object(self, request, post_id):
         return get_object_or_404(Post, id=post_id)
@@ -67,8 +67,9 @@ class ThreadPostsFeed(Feed):
 
     def item_link(self, item):
         if not item.is_opening():
-            return reverse('thread', args={item.thread_new.get_opening_post()
-                                           .id}) + "#" + str(item.id)
+            return reverse('thread', args={
+                item.get_thread().get_opening_post_id()
+            }) + "#" + str(item.id)
         else:
             return reverse('thread', args={item.id})