diff --git a/app/controllers/checks_controller.rb b/app/controllers/checks_controller.rb
index 551e7c2..303415e 100644
--- a/app/controllers/checks_controller.rb
+++ b/app/controllers/checks_controller.rb
@@ -95,7 +95,9 @@ class ChecksController < ApplicationController
                                   :applicable_to_analogue,
                                   :applicable_to_document,
                                   :applicable_to_non_web,
-                                  :external_number,
+                                  :external_number_1,
+                                  :external_number_2,
+                                  :external_number_3,
                                   :external_url,
                                   :conformity_level,
                                   :conformity_notice_de,