diff --git a/app/helpers/event_news_helper.rb b/app/helpers/event_news_helper.rb
index 8967748..303a29f 100644
--- a/app/helpers/event_news_helper.rb
+++ b/app/helpers/event_news_helper.rb
@@ -241,7 +241,7 @@ module EventNewsHelper
             tmp1 = event_news["event_date"].blank?
             tmp2 = event_news["postdate"].blank?
             [
-              (@show_today_data_first ? a['sort_number'].to_i : -a['sort_number'].to_i),
+              (@show_today_data_first ? event_news['sort_number'].to_i : -event_news['sort_number'].to_i),
               tmp1 ? 0 : 1, tmp1 ? nil : event_news["event_date"].to_time,
               tmp2 ? 0 : 1, tmp2 ? nil : event_news["postdate"].to_time
             ]