diff --git a/nova/objects/resource_provider.py b/nova/objects/resource_provider.py
index 640296a58838..4aba8626c520 100644
--- a/nova/objects/resource_provider.py
+++ b/nova/objects/resource_provider.py
@@ -1850,8 +1850,7 @@ class AllocationList(base.ObjectListBase, base.NovaObject):
                         resource_class_id=rc_id,
                         consumer_id=alloc.consumer_id,
                         used=alloc.used)
-                result = conn.execute(ins_stmt)
-                alloc.id = result.lastrowid
+                conn.execute(ins_stmt)
 
             # Generation checking happens here. If the inventory for
             # this resource provider changed out from under us,
diff --git a/nova/tests/functional/db/test_resource_provider.py b/nova/tests/functional/db/test_resource_provider.py
index 4937c495fc9f..6fcdf9c9dd9e 100644
--- a/nova/tests/functional/db/test_resource_provider.py
+++ b/nova/tests/functional/db/test_resource_provider.py
@@ -841,7 +841,6 @@ class TestAllocation(ResourceProviderBaseCase):
                          disk_allocation.used)
         self.assertEqual(DISK_ALLOCATION['consumer_id'],
                          disk_allocation.consumer_id)
-        self.assertIsInstance(disk_allocation.id, int)
 
         allocations = objects.AllocationList.get_all_by_resource_provider_uuid(
             self.ctx, resource_provider.uuid)
@@ -997,12 +996,13 @@ class TestAllocation(ResourceProviderBaseCase):
         allocations = objects.AllocationList.get_all_by_resource_provider_uuid(
             self.ctx, rp.uuid)
         self.assertEqual(1, len(allocations))
-        objects.Allocation._destroy(self.ctx, allocation.id)
+        allocation_id = allocations[0].id
+        objects.Allocation._destroy(self.ctx, allocation_id)
         allocations = objects.AllocationList.get_all_by_resource_provider_uuid(
             self.ctx, rp.uuid)
         self.assertEqual(0, len(allocations))
         self.assertRaises(exception.NotFound, objects.Allocation._destroy,
-                          self.ctx, allocation.id)
+                          self.ctx, allocation_id)
 
     def test_get_allocations_from_db(self):
         rp, allocation = self._make_allocation()
diff --git a/nova/tests/unit/objects/test_resource_provider.py b/nova/tests/unit/objects/test_resource_provider.py
index f0a43be78fba..dc69c1a7ce90 100644
--- a/nova/tests/unit/objects/test_resource_provider.py
+++ b/nova/tests/unit/objects/test_resource_provider.py
@@ -513,9 +513,13 @@ class TestAllocation(test_objects._LocalTest):
                                  consumer_id=uuids.fake_instance,
                                  used=8)
         alloc_list = objects.AllocationList(self.context, objects=[obj])
-        self.assertNotIn("id", obj)
         alloc_list.create_all()
-        self.assertIn("id", obj)
+
+        rp_al = resource_provider.AllocationList
+        saved_allocations = rp_al.get_all_by_resource_provider_uuid(
+            self.context, rp.uuid)
+        self.assertEqual(1, len(saved_allocations))
+        self.assertEqual(obj.used, saved_allocations[0].used)
 
     def test_create_with_id_fails(self):
         rp = objects.ResourceProvider(context=self.context,