diff --git a/app/models/ticket/overview.rb b/app/models/ticket/overview.rb
index 3bf731452..6a900a464 100644
--- a/app/models/ticket/overview.rb
+++ b/app/models/ticket/overview.rb
@@ -1,6 +1,6 @@
 # Copyright (C) 2012-2013 Zammad Foundation, http://zammad-foundation.org/
 
-require 'Overview'
+require 'overview'
 
 class Ticket::Overview