diff --git a/nova/tests/test_virt.py b/nova/tests/test_virt.py
index 958c8e3e2..5a010d347 100644
--- a/nova/tests/test_virt.py
+++ b/nova/tests/test_virt.py
@@ -617,7 +617,8 @@ class IptablesFirewallTestCase(test.TestCase):
         instance_ref = db.instance_create(self.context,
                                           {'user_id': 'fake',
                                           'project_id': 'fake',
-                                          'mac_address': '56:12:12:12:12:12'})
+                                          'mac_address': '56:12:12:12:12:12',
+                                          'instance_type': 'm1.small'})
         ip = '10.11.12.13'
 
         network_ref = db.project_get_network(self.context,
@@ -840,7 +841,8 @@ class NWFilterTestCase(test.TestCase):
         instance_ref = db.instance_create(self.context,
                                           {'user_id': 'fake',
                                           'project_id': 'fake',
-                                          'mac_address': '00:A0:C9:14:C8:29'})
+                                          'mac_address': '00:A0:C9:14:C8:29',
+                                          'instance_type': 'm1.small'})
         inst_id = instance_ref['id']
 
         ip = '10.11.12.13'