diff --git a/app/models/message.rb b/app/models/message.rb
--- a/app/models/message.rb
+++ b/app/models/message.rb
@@ -21,7 +21,7 @@
     Message.build_replying_message_hierarchy messages, replied_messages
     return messages
   end
-  
+
   def self.find_all_system_unreplied_messages
     self.find(:all, 
               :conditions => 'ISNULL(receiver_id) ' +