diff --git a/app/controllers/group_orders_controller.rb b/app/controllers/group_orders_controller.rb
index 8db98a8e4..2b87dc3ef 100644
--- a/app/controllers/group_orders_controller.rb
+++ b/app/controllers/group_orders_controller.rb
@@ -42,6 +42,7 @@ def edit
 
   def update
     @group_order.attributes = params[:group_order]
+    @group_order.updated_by = current_user
     begin
       @group_order.save_ordering!
       redirect_to group_order_url(@group_order), :notice => I18n.t('group_orders.update.notice')