diff --git a/app/models/spree/payment_method/check.rb b/app/models/spree/payment_method/check.rb
index 9f4378830c..839698bebc 100644
--- a/app/models/spree/payment_method/check.rb
+++ b/app/models/spree/payment_method/check.rb
@@ -25,6 +25,10 @@ module Spree
         ActiveMerchant::Billing::Response.new(true, "", {}, {})
       end
 
+      def payment_source_class
+        nil
+      end
+
       def source_required?
         false
       end
diff --git a/spec/controllers/checkout_controller_spec.rb b/spec/controllers/checkout_controller_spec.rb
index b39ffdcacd..4930eb22d5 100644
--- a/spec/controllers/checkout_controller_spec.rb
+++ b/spec/controllers/checkout_controller_spec.rb
@@ -338,12 +338,11 @@ RSpec.describe CheckoutController, type: :controller do
           let!(:payment_method_id) { payment_method.id }
 
           it "updates and redirects to summary step" do
-            expect { put(:update, params:) }.to raise_error(RuntimeError, error_message)
+            put(:update, params:)
 
-            # according to Bugsnag, we should get an error 500
-            expect(response.status).to be 200
-            expect(response).not_to redirect_to checkout_step_path(:summary)
-            expect(order.reload.state).to eq "payment"
+            expect(response.status).to be 302
+            expect(response).to redirect_to checkout_step_path(:summary)
+            expect(order.reload.state).to eq "confirmation"
           end
         end