diff --git a/spec/mailers/previews/order_mailer_preview.rb b/spec/mailers/previews/order_mailer_preview.rb
new file mode 100644
index 0000000000..13bdb4f711
--- /dev/null
+++ b/spec/mailers/previews/order_mailer_preview.rb
@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class OrderMailerPreview < ActionMailer::Preview
+  def confirm_email_for_customer
+    Spree::OrderMailer.confirm_email_for_customer(Spree::Order.complete.last)
+  end
+end