diff --git a/app/controllers/asks_controller.rb b/app/controllers/asks_controller.rb
index 5ae9851..145b56f 100644
--- a/app/controllers/asks_controller.rb
+++ b/app/controllers/asks_controller.rb
@@ -207,7 +207,7 @@ class AsksController < ApplicationController
     all_to_save = []
     ask_setting = AskCategorySetting.enabled.where(category_id: params['ask_question']['category_id']).first
     override_sort_number = nil
-    if ask_setting.use_default
+    if ask_setting && ask_setting.use_default
       override_sort_number = ask_setting.default_sort_number
       ask_setting = nil
     end