diff --git a/tobiko/openstack/nova/_service.py b/tobiko/openstack/nova/_service.py
index 70db2c1c6..f1316dc5a 100644
--- a/tobiko/openstack/nova/_service.py
+++ b/tobiko/openstack/nova/_service.py
@@ -46,7 +46,7 @@ def services_details(services: typing.List):
 def wait_for_services_up(retry: typing.Optional[tobiko.Retry] = None,
                          **list_services_params):
     for attempt in tobiko.retry(other_retry=retry,
-                                default_timeout=30.,
+                                default_timeout=300.,
                                 default_interval=5.):
         services = _client.list_services(**list_services_params)
         LOG.debug(f"Found {len(services)} Nova services")