diff --git a/app/controllers/admin/archive_files_controller.rb b/app/controllers/admin/archive_files_controller.rb
index 6bb0af6..081dee7 100644
--- a/app/controllers/admin/archive_files_controller.rb
+++ b/app/controllers/admin/archive_files_controller.rb
@@ -16,8 +16,10 @@ class Admin::ArchiveFilesController < OrbitAdminController
     end
     keys.each_with_index do |key,index|
         archivecategory = ArchiveCategory.where(category_id: key)
-        archivecategory.first.sort_number = values[index]
-        archivecategory.first.save!
+        if !(values[index].empty?)
+            archivecategory.first['sort_number'] = values[index]_.to_i
+            archivecategory.first.save!
+        end
     end
     rescue => e
         puts e