diff --git a/app/models/programming_group.rb b/app/models/programming_group.rb
index f47aa939..f2584474 100644
--- a/app/models/programming_group.rb
+++ b/app/models/programming_group.rb
@@ -13,6 +13,7 @@ class ProgrammingGroup < ApplicationRecord
   has_many :events_synchronized_editor, class_name: 'Event::SynchronizedEditor', dependent: :destroy
   has_many :pair_programming_exercise_feedbacks, dependent: :destroy
   has_many :pair_programming_waiting_users, dependent: :destroy
+  has_many :user_exercise_interventions, as: :contributor
   belongs_to :exercise
 
   validate :min_group_size