diff --git a/aiogram/api/client/base.py b/aiogram/api/client/base.py
index 70ed56c0..9990b191 100644
--- a/aiogram/api/client/base.py
+++ b/aiogram/api/client/base.py
@@ -112,7 +112,7 @@ class BaseBot(ContextInstanceMixin, DataMixin):
         :type destination: Optional[Union[BinaryIO, pathlib.Path, str]]
         :param timeout: Total timeout in seconds, defaults to 30
         :type timeout: int
-        :param chunk_size: Chunk size, defaults to 65536
+        :param chunk_size: File chunks size, defaults to 64 kb
         :type chunk_size: int
         :param seek: Go to start of file when downloading is finished. Used only for :class:`typing.BinaryIO` type destination, defaults to True
         :type seek: bool
diff --git a/docs/api/downloading_files.md b/docs/api/downloading_files.md
index b544e202..e243fafc 100644
--- a/docs/api/downloading_files.md
+++ b/docs/api/downloading_files.md
@@ -28,9 +28,8 @@ value of destination and handle result of this method.
 |---|---|---|
 | file_path | `#!python3 str` | File path on Telegram server |
 | destination | `#!python3 Optional[Union[BinaryIO, pathlib.Path, str]]` | Filename, file path or instance of `#!python3 io.IOBase`. For e.g. `#!python3 io.BytesIO` (Default: `#!python3 None`) |
-| chunk_size | `#!python3 int` | File chunks size (Default: `64 kb`) |
 | timeout | `#!python3 int` | Total timeout in seconds (Default: `30`) |
-| chunk_size | `#!python3 int` | Chunk size (Default: `65536`) |
+| chunk_size | `#!python3 int` | File chunks size (Default: `64 kb`) |
 | seek | `#!python3 bool` | Go to start of file when downloading is finished. Used only for destination with `#!python3 typing.BinaryIO` type (Default: `#!python3 True`) |
 
 There are two options where you can download the file: to **disk** or to **binary I/O object**.