diff --git a/app/models/memo.rb b/app/models/memo.rb
index 850d76fee..bb71e9014 100644
--- a/app/models/memo.rb
+++ b/app/models/memo.rb
@@ -46,6 +46,8 @@ class Memo < ApplicationRecord
 
   belongs_to :author, :class_name => "User", foreign_key: :author_id, counter_cache: true
 
+  enum destroy_status: {common: 0, apply_destroy: 1}
+
   def meno_tag_name
     tag_id.to_i > 3 ? "" : ["", "交流", "求助", "新闻"][tag_id.to_i]
   end