diff --git a/app/controllers/conference_registrations_controller.rb b/app/controllers/conference_registrations_controller.rb
index c229440e..46cc2e38 100644
--- a/app/controllers/conference_registrations_controller.rb
+++ b/app/controllers/conference_registrations_controller.rb
@@ -83,7 +83,11 @@ class ConferenceRegistrationsController < ApplicationController
   end
 
   def destroy
+    tickets_purchased = TicketPurchase.where(conference_id: @registration.conference_id)
     if @registration.destroy
+      if tickets_purchased
+        tickets_purchased.destroy
+      end
       redirect_to root_path,
                   notice: "You are not registered for #{@conference.title} anymore!"
     else
diff --git a/spec/controllers/admin/registration_periods_controller_spec.rb b/spec/controllers/admin/registration_periods_controller_spec.rb
index 6177fde7..5fe6d06b 100644
--- a/spec/controllers/admin/registration_periods_controller_spec.rb
+++ b/spec/controllers/admin/registration_periods_controller_spec.rb
@@ -144,6 +144,9 @@ describe Admin::RegistrationPeriodsController do
       it 'it deletes the registration period' do
         expect { delete :destroy, conference_id: conference.short_title }.to change(RegistrationPeriod, :count).by(-1)
       end
+      it 'it deletes the conference tickets' do
+        expect { delete :destroy, conference_id: conference.short_title }.to change(TicketPurchase, :count).by(-1)
+      end
       it 'redirects to users#show' do
         delete :destroy, conference_id: conference.short_title
         expect(response).to redirect_to admin_conference_registration_period_path