diff --git a/app/serializers/api/order_serializer.rb b/app/serializers/api/order_serializer.rb
index 4f07cdb962..807811461b 100644
--- a/app/serializers/api/order_serializer.rb
+++ b/app/serializers/api/order_serializer.rb
@@ -19,6 +19,7 @@ module Api
     end
 
     def changes_allowed_until
+      return I18n.t(:not_allowed) unless object.changes_allowed?
       I18n.l(object.order_cycle.andand.orders_close_at, format: :long)
     end
 
diff --git a/config/locales/en.yml b/config/locales/en.yml
index b5735d34f2..7c3a1738bc 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -645,6 +645,7 @@ en:
   terms_of_service: "Terms of service"
   on_demand: On demand
   none: None
+  not_allowed: Not allowed
 
   label_shops: "Shops"
   label_map: "Map"