diff --git a/app/models/submission.rb b/app/models/submission.rb
index b4ce0246..ff3ba4ba 100644
--- a/app/models/submission.rb
+++ b/app/models/submission.rb
@@ -33,7 +33,6 @@ class Submission < ApplicationRecord
   belongs_to :challenge
   belongs_to :phase, counter_cache: true
   belongs_to :submitter, class_name: 'User'
-  belongs_to :manager, class_name: 'User'
   has_many :evaluator_submission_assignments, dependent: :destroy
   has_many :evaluators, through: :evaluator_submission_assignments, class_name: "User"
   has_many :evaluations, dependent: :destroy