diff --git a/app/models/hack.rb b/app/models/hack.rb
index 0c5970af4..9c8ca44fb 100644
--- a/app/models/hack.rb
+++ b/app/models/hack.rb
@@ -23,7 +23,6 @@ class Hack < ApplicationRecord
   belongs_to :sub_discipline
 
   has_one :item_bank, as: :container, dependent: :destroy
-  has_one :examination_bank, as: :container, dependent: :destroy
 
   scope :published, -> { where(status: 1) }
   scope :unpublish, -> { where(status: 0) }