diff --git a/InvenTree/order/tests.py b/InvenTree/order/tests.py
index 89c39db8f5..7b118dc60e 100644
--- a/InvenTree/order/tests.py
+++ b/InvenTree/order/tests.py
@@ -31,11 +31,11 @@ class OrderTest(TestCase):
 
         self.assertEqual(order.get_absolute_url(), '/order/purchase-order/1/')
 
-        self.assertEqual(str(order), 'PO 1 - ACME')
+        self.assertEqual(str(order), 'PO 0001 - ACME')
         
         line = PurchaseOrderLineItem.objects.get(pk=1)
 
-        self.assertEqual(str(line), "100 x ACME0001 from ACME (for PO 1 - ACME)")
+        self.assertEqual(str(line), "100 x ACME0001 from ACME (for PO 0001 - ACME)")
 
     def test_increment(self):