diff --git a/nailgun/entities.py b/nailgun/entities.py
index 8ce3e308..bdd2da7b 100644
--- a/nailgun/entities.py
+++ b/nailgun/entities.py
@@ -4313,6 +4313,7 @@ def __init__(self, server_config=None, **kwargs):
             'interface': entity_fields.OneToManyField(Interface),
             'interfaces_attributes': entity_fields.DictField(),
             'ip': entity_fields.StringField(),
+            'ip6': entity_fields.StringField(),
             'location': entity_fields.OneToOneField(Location, required=True),
             'mac': entity_fields.MACAddressField(),
             'managed': entity_fields.BooleanField(),