diff --git a/packages/bookshop/db/schema.cds b/packages/bookshop/db/schema.cds
index 6afa0a07..9d9440bf 100644
--- a/packages/bookshop/db/schema.cds
+++ b/packages/bookshop/db/schema.cds
@@ -1,6 +1,6 @@
 namespace sap.capire.bookshop;
 using { Currency, managed, cuid } from '@sap/cds/common';
-using { API_BUSINESS_PARTNER as external } from '../srv/external/API_BUSINESS_PARTNER';
+using { API_BUSINESS_PARTNER as external } from '../srv/external/API_BUSINESS_PARTNER.csn';
 
 entity Books : managed {
   key ID : Integer;
@@ -45,4 +45,4 @@ entity ShippingAddresses as projection on external.A_BusinessPartnerAddress  {
   PostalCode as postalCode,
   StreetName as streetName,
   HouseNumber as houseNumber
-}
\ No newline at end of file
+}