diff --git a/db/migrate/20151210000001_update_chat.rb b/db/migrate/20151210000001_update_chat4.rb
similarity index 91%
rename from db/migrate/20151210000001_update_chat.rb
rename to db/migrate/20151210000001_update_chat4.rb
index 1cdd924b4..0abdcc321 100644
--- a/db/migrate/20151210000001_update_chat.rb
+++ b/db/migrate/20151210000001_update_chat4.rb
@@ -1,4 +1,4 @@
-class UpdateChat < ActiveRecord::Migration
+class UpdateChat4 < ActiveRecord::Migration
   def up
     Scheduler.create_or_update(
       name: 'Closed chat sessions where participients are offline.',