--- libcloud/storage/drivers/cloudfiles.py      (revision dcb4cd998573c0fd8d48c7187e8a4fdcc4899fa8)
+++ libcloud/storage/drivers/cloudfiles.py      (revision )
@@ -129,7 +129,8 @@
             self._service_region = None

     def get_endpoint(self, *args, **kwargs):
-        if '2.0' in self._auth_version:
+        endpoint = None
+        if ('2.0' in self._auth_version) or ('3.x' in self._auth_version):
             endpoint = self.service_catalog.get_endpoint(
                 service_type=self._service_type,
                 name=self._service_name,