Reference to an int type, whereas it's a Py_ssize_t as the synopsis states.
diff --git a/Doc/c-api/arg.rst b/Doc/c-api/arg.rst
index db0c832..f34e4b4 100644
--- a/Doc/c-api/arg.rst
+++ b/Doc/c-api/arg.rst
@@ -262,9 +262,9 @@
``w#`` (read-write character buffer) [char \*, Py_ssize_t]
Like ``s#``, but accepts any object which implements the read-write buffer
interface. The :ctype:`char \*` variable is set to point to the first byte
- of the buffer, and the :ctype:`int` is set to the length of the buffer.
- Only single-segment buffer objects are accepted; :exc:`TypeError` is raised
- for all others.
+ of the buffer, and the :ctype:`Py_ssize_t` is set to the length of the
+ buffer. Only single-segment buffer objects are accepted; :exc:`TypeError`
+ is raised for all others.
``w*`` (read-write byte-oriented buffer) [Py_buffer \*]
This is to ``w`` what ``s*`` is to ``s``.