diff --git a/elasticsearch/helpers/__init__.py b/elasticsearch/helpers/__init__.py
index 01d0b6cf..8eb2e761 100644
--- a/elasticsearch/helpers/__init__.py
+++ b/elasticsearch/helpers/__init__.py
@@ -131,7 +131,7 @@ def _process_bulk_chunk(client, bulk_actions, raise_on_exception=True, raise_on_
     if errors:
         raise BulkIndexError('%i document(s) failed to index.' % len(errors), errors)
 
-def streaming_bulk(client, actions, chunk_size=500, max_chunk_bytes=100 * 1014 * 1024,
+def streaming_bulk(client, actions, chunk_size=500, max_chunk_bytes=100 * 1024 * 1024,
         raise_on_error=True, expand_action_callback=expand_action,
         raise_on_exception=True, **kwargs):
     """