diff --git a/spec/mailers/previews/shipment_preview.rb b/spec/mailers/previews/shipment_preview.rb
index 28a396b92b..c5decc60b8 100644
--- a/spec/mailers/previews/shipment_preview.rb
+++ b/spec/mailers/previews/shipment_preview.rb
@@ -2,13 +2,11 @@
 
 require 'open_food_network/scope_variant_to_hub'
 
-module Spree
-  class ShipmentPreview < ActionMailer::Preview
-    def shipped
-      shipment =
-        Shipment.where.not(tracking: [nil, ""]).last ||
-        Shipment.last
-      ShipmentMailer.shipped_email(shipment)
-    end
+class ShipmentPreview < ActionMailer::Preview
+  def shipped
+    shipment =
+      Spree::Shipment.where.not(tracking: [nil, ""]).last ||
+      Spree::Shipment.last
+    Spree::ShipmentMailer.shipped_email(shipment, delivery: true)
   end
 end