diff --git a/stdlib/_curses.pyi b/stdlib/_curses.pyi
index ae39ef512df4..cf11bb40d2ee 100644
--- a/stdlib/_curses.pyi
+++ b/stdlib/_curses.pyi
@@ -539,3 +539,4 @@ if sys.version_info >= (3, 8):
         minor: int
         patch: int
     ncurses_version: _ncurses_version
+    window = _CursesWindow  # undocumented