diff --git a/app/helpers/cost_objects_helper.rb b/app/helpers/cost_objects_helper.rb
index 0a876458b6..dea9552e1f 100644
--- a/app/helpers/cost_objects_helper.rb
+++ b/app/helpers/cost_objects_helper.rb
@@ -21,6 +21,7 @@ require 'csv'
 
 module CostObjectsHelper
   include ApplicationHelper
+  include ActionView::Helpers::NumberHelper
 
   # Check if the current user is allowed to manage the budget.  Based on Role
   # permissions.