diff --git a/Doc/library/curses.rst b/Doc/library/curses.rst
index 9bbba777e53..a2519f4b55b 100644
--- a/Doc/library/curses.rst
+++ b/Doc/library/curses.rst
@@ -4,10 +4,10 @@
 .. module:: curses
    :synopsis: An interface to the curses library, providing portable terminal
               handling.
+   :platform: Unix
 .. sectionauthor:: Moshe Zadka <moshez@zadka.site.co.il>
 .. sectionauthor:: Eric Raymond <esr@thyrsus.com>
 
-
 .. versionchanged:: 1.6
    Added support for the ``ncurses`` library and converted to a package.