diff --git a/Doc/library/sys.rst b/Doc/library/sys.rst
index 807245f..cec2966 100644
--- a/Doc/library/sys.rst
+++ b/Doc/library/sys.rst
@@ -379,17 +379,19 @@
    file names, or ``None`` if the system default encoding is used. The result value
    depends on the operating system:
 
-   * On Windows 9x, the encoding is "mbcs".
-
-   * On Mac OS X, the encoding is "utf-8".
+   * On Mac OS X, the encoding is ``'utf-8'``.
 
    * On Unix, the encoding is the user's preference according to the result of
-     nl_langinfo(CODESET), or :const:`None` if the ``nl_langinfo(CODESET)`` failed.
+     nl_langinfo(CODESET), or ``None`` if the ``nl_langinfo(CODESET)``
+     failed.
 
    * On Windows NT+, file names are Unicode natively, so no conversion is
-     performed. :func:`getfilesystemencoding` still returns ``'mbcs'``, as this is
-     the encoding that applications should use when they explicitly want to convert
-     Unicode strings to byte strings that are equivalent when used as file names.
+     performed. :func:`getfilesystemencoding` still returns ``'mbcs'``, as
+     this is the encoding that applications should use when they explicitly
+     want to convert Unicode strings to byte strings that are equivalent when
+     used as file names.
+
+   * On Windows 9x, the encoding is ``'mbcs'``.
 
    .. versionadded:: 2.3