diff --git a/lib/esse/active_record/callbacks/indexing_on_update.rb b/lib/esse/active_record/callbacks/indexing_on_update.rb
index 26e34df..1da6c2a 100644
--- a/lib/esse/active_record/callbacks/indexing_on_update.rb
+++ b/lib/esse/active_record/callbacks/indexing_on_update.rb
@@ -53,5 +53,3 @@ def update_document(document)
     register_callback(:indexing, :update, IndexingOnUpdate)
   end
 end
-
-# Esse::Transport::NotFoundError