diff --git a/app/controllers/ps_admin/order_controller.rb b/app/controllers/ps_admin/order_controller.rb
index 77cf052..2da0114 100644
--- a/app/controllers/ps_admin/order_controller.rb
+++ b/app/controllers/ps_admin/order_controller.rb
@@ -28,7 +28,7 @@ module PsAdmin
     def gen_pdf_file
       otp = OrderToPdf.new(@order).call
 
-      send_file otp
+      send_data otp, filename: otp.file_name
     end
 
     def status_histories