diff --git a/app/models/stopped_sponsorship.rb b/app/models/stopped_sponsorship.rb
index 0290fb77..b73ba273 100644
--- a/app/models/stopped_sponsorship.rb
+++ b/app/models/stopped_sponsorship.rb
@@ -1,2 +1,5 @@
 class StoppedSponsorship < ApplicationRecord
+  belongs_to :sponsor, class_name: 'User'
+  belongs_to :developer, class_name: 'User'
+  validates :amount, presence: true
 end