diff --git a/spec/controllers/webhook_controller_spec.rb b/spec/controllers/webhook_controller_spec.rb
index a1e1628..55d9605 100644
--- a/spec/controllers/webhook_controller_spec.rb
+++ b/spec/controllers/webhook_controller_spec.rb
@@ -8,9 +8,11 @@ def stub_event(identifier, status = 200)
   end
 
   def webhook(params)
-    post :event, params.merge(use_route: :stripe_event)
+    post :event, params
   end
 
+  routes { StripeEvent::Engine.routes }
+
   it "succeeds with valid event data" do
     count = 0
     StripeEvent.subscribe('charge.succeeded') { |evt| count += 1 }