diff --git a/pyairtable/api/api.py b/pyairtable/api/api.py
index <HASH>..<HASH> 100644
--- a/pyairtable/api/api.py
+++ b/pyairtable/api/api.py
@@ -267,7 +267,7 @@ class Api(ApiAbstract):
         Args:
             base_id: |arg_base_id|
             table_name: |arg_table_name|
-            records(``list``): List of dict: [{"id": record_id, "field": fields_to_update_dict}]
+            records(``list``): List of dict: [{"id": record_id, "fields": fields_to_update_dict}]
 
         Keyword Args:
             replace (``bool``, optional): If ``True``, record is replaced in its entirety
Minor doc change on batch_update

Current docstring says to use "field" as the key, but it needs to be "fields".