diff --git a/ietf/idtracker/feeds.py b/ietf/idtracker/feeds.py
index 3f0a3fcec..bf98547d2 100644
--- a/ietf/idtracker/feeds.py
+++ b/ietf/idtracker/feeds.py
@@ -7,7 +7,7 @@ class DocumentComments(Feed):
     feed_type = Atom1Feed
     def get_object(self, bits):
 	if len(bits) != 1:
-	    raise ObjectDoesNotExist
+	    raise InternetDraft.DoesNotExist
 	return InternetDraft.objects.get(filename=bits[0])
 
     def title(self, obj):