diff --git a/packages/products-service/db/schema.cds b/packages/products-service/db/schema.cds
index ff26643d..ebfe6555 100644
--- a/packages/products-service/db/schema.cds
+++ b/packages/products-service/db/schema.cds
@@ -3,7 +3,7 @@ namespace sap.capire.products;
 using { Currency, cuid, managed, sap.common.CodeList } from '@sap/cds/common';
 
 entity Products : cuid, managed {
-  ID       : String(36);
+  key ID   : String(36);
   title    : localized String(111);
   descr    : localized String(1111);
   stock    : Integer;