diff --git a/app/models/forum.rb b/app/models/forum.rb
index 878937ea7..bdadcd8a9 100644
--- a/app/models/forum.rb
+++ b/app/models/forum.rb
@@ -1,5 +1,6 @@
 class Forum < ActiveRecord::Base
   include Redmine::SafeAttributes
+  has_many_kindeditor_assets :assets, :dependent => :destroy
   has_many :topics, :class_name => 'Memo', :conditions => "#{Memo.table_name}.parent_id IS NULL", :order => "#{Memo.table_name}.created_at DESC", :dependent => :destroy
   has_many :memos, :dependent => :destroy, conditions: "parent_id IS NULL"
   belongs_to :creator, :class_name => "User", :foreign_key => 'creator_id'