diff --git a/Chapter04/src/main/resources/db/migration/V1.0.0__Init.sql b/Chapter04/src/main/resources/db/migration/V1.0.0__Init.sql
index 78989ac..8f65fc9 100644
--- a/Chapter04/src/main/resources/db/migration/V1.0.0__Init.sql
+++ b/Chapter04/src/main/resources/db/migration/V1.0.0__Init.sql
@@ -153,8 +153,7 @@ create TABLE IF NOT EXISTS ecomm.orders (
 	FOREIGN KEY(payment_id)
 		REFERENCES ecomm.payment(id),
   FOREIGN KEY(shipment_id)
-		REFERENCES ecomm.shipment(id),
-	PRIMARY KEY(id)
+		REFERENCES ecomm.shipment(id)
 );
 
 create TABLE IF NOT EXISTS ecomm.item (
@@ -223,4 +222,4 @@ INSERT INTO ecomm.item VALUES
   ('a7384042-e4aa-4c93-85ae-31a346dad705', '3395a42e-2d88-40de-b95f-e00e1502085b', 1, 20.99);
 INSERT INTO ecomm.order_item VALUES
   ('66682caa-a6d8-46ed-a173-ff822f754e1c', '0a59ba9f-629e-4445-8129-b9bce1985d6a', 'a7384042-e4aa-4c93-85ae-31a346dad704'),
-  ('efeefa71-2760-412a-9ec8-0a040d90f02c', '0a59ba9f-629e-4445-8129-b9bce1985d6a', 'a7384042-e4aa-4c93-85ae-31a346dad705');
\ No newline at end of file
+  ('efeefa71-2760-412a-9ec8-0a040d90f02c', '0a59ba9f-629e-4445-8129-b9bce1985d6a', 'a7384042-e4aa-4c93-85ae-31a346dad705');