diff --git a/app/models/competition_module_md_content.rb b/app/models/competition_module_md_content.rb
index a88e892c..4653f112 100644
--- a/app/models/competition_module_md_content.rb
+++ b/app/models/competition_module_md_content.rb
@@ -1,6 +1,7 @@
 class CompetitionModuleMdContent < ActiveRecord::Base
   # attr_accessible :title, :body
   belongs_to :competition_module
+  has_many :attachments, :dependent => :destroy
   acts_as_attachable
 
 end