diff --git a/InvenTree/order/test_sales_order.py b/InvenTree/order/test_sales_order.py
index c619aec5bc..fce6fcb904 100644
--- a/InvenTree/order/test_sales_order.py
+++ b/InvenTree/order/test_sales_order.py
@@ -73,10 +73,10 @@ class SalesOrderTest(TestCase):
         self.assertFalse(self.order.is_fully_allocated())
 
     def test_add_duplicate_line_item(self):
-        # Adding a duplicate line item to a SalesOrder must throw an error
+        # Adding a duplicate line item to a SalesOrder is accepted
         
-        with self.assertRaises(IntegrityError):
-            SalesOrderLineItem.objects.create(order=self.order, part=self.part)
+        for ii in range(1, 5):
+            SalesOrderLineItem.objects.create(order=self.order, part=self.part, quantity=ii)
 
     def allocate_stock(self, full=True):