diff --git a/nova/tests/test_virt.py b/nova/tests/test_virt.py
index 8cee55576..df29e69c2 100644
--- a/nova/tests/test_virt.py
+++ b/nova/tests/test_virt.py
@@ -258,7 +258,6 @@ class LibvirtConnTestCase(test.TestCase):
         check = [
         (lambda t: t.find('.').get('type'), 'lxc'),
         (lambda t: t.find('./os/type').text, 'exe'),
-        (lambda t: t.find('./devices/filesystem/source').get('dir'), 'rootfs'),
         (lambda t: t.find('./devices/filesystem/target').get('dir'), '/')]
 
         for i, (check, expected_result) in enumerate(check):
@@ -266,6 +265,9 @@ class LibvirtConnTestCase(test.TestCase):
                              expected_result,
                              '%s failed common check %d' % (xml, i))
 
+        target = tree.find('./devices/filesystem/source').get('dir')
+        self.assertTrue(len(target) > 0)
+
     def _check_xml_and_uri(self, instance, expect_ramdisk, expect_kernel,
                            rescue=False):
         user_context = context.RequestContext(project=self.project,