diff --git a/app/mailers/order_mailer.rb b/app/mailers/order_mailer.rb
index 2f67aae..9b9a8e2 100644
--- a/app/mailers/order_mailer.rb
+++ b/app/mailers/order_mailer.rb
@@ -14,7 +14,7 @@ class OrderMailer < ApplicationMailer
     ss = ScSetting.first
     otp = OrderToPdf.new(@order)
     attachments[otp.file_name] = otp.call
-    sleep(5)
+    sleep(5) #to make sure pdf file saved on the disk
     mail(subject: "Nowe zamówienie nr: #{@order.beauty_id}",
          from: "#{ss.shop_name} <kaktusiarnia.rumia@gmail.com>",
          to: ss.shop_owners_emails,