diff --git a/neutron/tests/unit/test_attributes.py b/neutron/tests/unit/test_attributes.py
index f8cb462b3e..510aac0398 100644
--- a/neutron/tests/unit/test_attributes.py
+++ b/neutron/tests/unit/test_attributes.py
@@ -281,7 +281,7 @@ class TestAttributes(base.BaseTestCase):
                     ['www.hostname.com', 'www.hostname.com'],
                     ['77.hostname.com'],
                     ['1000.0.0.1'],
-                    ['111111111111111111111111111111111111111111111111111111111111'],  # noqa
+                    ['1' * 59],
                     None]
 
         for ns in ns_pools: