diff --git a/app/models/activity.rb b/app/models/activity.rb
index c346881..2a1421d 100644
--- a/app/models/activity.rb
+++ b/app/models/activity.rb
@@ -7,10 +7,13 @@ class Activity
   include MemberHelper
   #include Slug
 
-  field :year, type: String, localize: true
+  # Language
   field :activity_name, type: String, localize: true
   field :activity_organizer, type: String, localize: true
   field :activity_area, type: String, localize: true
+
+  # Basic
+  field :year, type: String
   field :activity_start_date, type: DateTime
   field :activity_end_date, type: DateTime
   field :note, type: String