#9911: doc copyedits.
diff --git a/Doc/c-api/arg.rst b/Doc/c-api/arg.rst
index f955c96..fc64b20 100644
--- a/Doc/c-api/arg.rst
+++ b/Doc/c-api/arg.rst
@@ -65,7 +65,7 @@
.. note::
This format does not accept bytes-like objects. If you want to accept
filesystem paths and convert them to C character strings, it is
- preferrable to use the ``O&`` format with :cfunc:`PyUnicode_FSConverter`
+ preferable to use the ``O&`` format with :cfunc:`PyUnicode_FSConverter`
as *converter*.
``s*`` (:class:`str`, :class:`bytes`, :class:`bytearray` or buffer compatible object) [Py_buffer]