diff --git a/src/swagger/builder.js b/src/swagger/builder.js
index 8c9afc1..d92242f 100644
--- a/src/swagger/builder.js
+++ b/src/swagger/builder.js
@@ -20,6 +20,7 @@ const doc = {
                 $code: "123456",
                 $name: "Product name",
                 $description: "Product description",
+                $source: "trialBalanceBranch / cifAccount / lnkolek",
                 $status: "Y",
             },
             branch: {