diff --git a/spec/models/user_spec.rb b/spec/models/user_spec.rb
index 7353ecf5..98c791b6 100644
--- a/spec/models/user_spec.rb
+++ b/spec/models/user_spec.rb
@@ -445,9 +445,11 @@ describe User do
     describe '#count_registration_tickets' do
       let(:registration_ticket) { create(:registration_ticket, price_cents: 0) }
       let(:conference3) { create(:conference, short_title: 'oSC17', title: 'openSUSE Conference 2017', tickets: [registration_ticket]) }
-      let(:ticket_purchase) { create(user: user, conference: conference3, ticket: registration_ticket, quantity: 1) }
+      let(:ticket_purchase) { create(:ticket_purchase, user: user, conference: conference3, ticket: registration_ticket, quantity: 1) }
 
       it 'counts the number of registration tickets of a conference held by user' do
+        user.ticket_purchases << ticket_purchase
+
         expect(user.count_registration_tickets(conference3)).to eq(1)
         expect(user.count_registration_tickets(conference2)).to eq(0)
       end