diff --git a/app/models/spree/calculator/sysmocom_mail_value_calculator.rb b/app/models/spree/calculator/sysmocom_mail_value_calculator.rb
index 8996448..6631067 100644
--- a/app/models/spree/calculator/sysmocom_mail_value_calculator.rb
+++ b/app/models/spree/calculator/sysmocom_mail_value_calculator.rb
@@ -33,6 +33,7 @@ module Spree
         if shipping_value < 30
           # Plain registered letter
           return base
+        end
 
         return base + 2.5 + (((shipping_value.round / 100) + 1) * 2)
     end