diff --git a/Doc/c-api/arg.rst b/Doc/c-api/arg.rst
index 834aae9372fe3b..6ae10f185182fb 100644
--- a/Doc/c-api/arg.rst
+++ b/Doc/c-api/arg.rst
@@ -163,7 +163,7 @@ There are three ways strings and buffers can be converted to C:
    The buffer may contain embedded null bytes. The caller have to call
    :c:func:`PyBuffer_Release` when it is done with the buffer.
 
-``es`` (:class:`str`) [const char \*encoding, char \*\*buffer]
+``es`` (:class:`str`) [*encoding*, char \*buffer]
    This variant on ``s`` is used for encoding Unicode into a character buffer.
    It only works for encoded data without embedded NUL bytes.
 
@@ -180,12 +180,12 @@ There are three ways strings and buffers can be converted to C:
    allocated storage.  The caller is responsible for calling :c:func:`PyMem_Free` to
    free the allocated buffer after use.
 
-``et`` (:class:`str`, :class:`bytes` or :class:`bytearray`) [const char \*encoding, char \*\*buffer]
+``et`` (:class:`str`, :class:`bytes` or :class:`bytearray`) [*encoding*, char \*buffer]
    Same as ``es`` except that byte string objects are passed through without
    recoding them.  Instead, the implementation assumes that the byte string object uses
    the encoding passed in as parameter.
 
-``es#`` (:class:`str`) [const char \*encoding, char \*\*buffer, :c:type:`Py_ssize_t` \*buffer_length]
+``es#`` (:class:`str`) [*encoding*, char \*buffer, :c:type:`Py_ssize_t` buffer_length]
    This variant on ``s#`` is used for encoding Unicode into a character buffer.
    Unlike the ``es`` format, this variant allows input data which contains NUL
    characters.
@@ -216,7 +216,7 @@ There are three ways strings and buffers can be converted to C:
    In both cases, *\*buffer_length* is set to the length of the encoded data
    without the trailing NUL byte.
 
-``et#`` (:class:`str`, :class:`bytes` or :class:`bytearray`) [const char \*encoding, char \*\*buffer, :c:type:`Py_ssize_t` \*buffer_length]
+``et#`` (:class:`str`, :class:`bytes` or :class:`bytearray`) [*encoding*, char \*buffer, :c:type:`Py_ssize_t` buffer_length]
    Same as ``es#`` except that byte string objects are passed through without recoding
    them. Instead, the implementation assumes that the byte string object uses the
    encoding passed in as parameter.