diff --git a/nailgun/entities.py b/nailgun/entities.py
index 34a1e713..dcce6a5e 100644
--- a/nailgun/entities.py
+++ b/nailgun/entities.py
@@ -6926,6 +6926,7 @@ def __init__(self, server_config=None, **kwargs):
             'force': entity_fields.BooleanField(default=False),
             'ignore_subman_errors': entity_fields.BooleanField(default=False),
             'repo_data': entity_fields.ListField(),
+            'download_utility': entity_fields.StringField(default='curl', choices=('curl', 'wget')),
         }
 
         self._meta = {'api_path': '/api/registration_commands'}