diff --git a/swh/objstorage/backends/libcloud.py b/swh/objstorage/backends/libcloud.py
--- a/swh/objstorage/backends/libcloud.py
+++ b/swh/objstorage/backends/libcloud.py
@@ -71,7 +71,6 @@
         """
         # Get the driver class from its description.
         cls = providers.get_driver(self._get_provider())
-        cls.namespace = None
         # Initialize the driver.
         return cls(**kwargs)