diff --git a/nailgun/entities.py b/nailgun/entities.py
index 72457f61..a02157d4 100644
--- a/nailgun/entities.py
+++ b/nailgun/entities.py
@@ -226,6 +226,7 @@ def __init__(self, server_config=None, **kwargs):
                 Organization,
                 required=True,
             ),
+            'organization_id': entity_fields.IntegerField(),
             'purpose_usage': entity_fields.StringField(),
             'purpose_role': entity_fields.StringField(),
             'purpose_addons': entity_fields.ListField(),