diff --git a/S3/S3.py b/S3/S3.py
index ec90a775..8f8e216c 100644
--- a/S3/S3.py
+++ b/S3/S3.py
@@ -388,7 +388,7 @@ def bucket_list_noparse(self, bucket, prefix = None, recursive = None, uri_param
             uri_params = {}
         if prefix:
             uri_params['prefix'] = prefix
-        if not self.config.recursive and not recursive:
+        if not self.config.recursive and not recursive and not self.config.list_allow_unordered:
             uri_params['delimiter'] = "/"
         if max_keys != -1:
             uri_params['max-keys'] = str(max_keys)