diff --git a/src/pretix/api/serializers/event.py b/src/pretix/api/serializers/event.py
index 1fa4328b3..465b4b2cf 100644
--- a/src/pretix/api/serializers/event.py
+++ b/src/pretix/api/serializers/event.py
@@ -930,6 +930,8 @@ class DeviceEventSettingsSerializer(EventSettingsSerializer):
         'invoice_address_from_country',
         'invoice_address_from_tax_id',
         'invoice_address_from_vat_id',
+        'order_phone_asked',
+        'order_phone_required',
         'name_scheme',
         'reusable_media_type_barcode',
         'reusable_media_type_nfc_uid',