diff --git a/db/migrate/20150712000002_update_setting2.rb b/db/migrate/20150712000002_update_setting2.rb
index 56ae6d2d3..ce3889266 100644
--- a/db/migrate/20150712000002_update_setting2.rb
+++ b/db/migrate/20150712000002_update_setting2.rb
@@ -3,6 +3,7 @@ class UpdateSetting2 < ActiveRecord::Migration
 
     # add preferences
     add_column :settings, :preferences, :string, limit: 2000, null: true
+    Setting.reset_column_information
 
     # update settings
     %w(product_name ticket_hook chat).each {|setting_name|