--- ./Modules/posixmodule.c.orig
+++ ./Modules/posixmodule.c
@@ -7768,7 +7768,7 @@
 function posix_close.
 */
 static PyObject *
-posix_close_(PyObject *self, PyObject *args)
+_posix_close_(PyObject *self, PyObject *args)
 {
     int fd, res;
     if (!PyArg_ParseTuple(args, "i:close", &fd))
@@ -11426,7 +11426,7 @@
     {"open",            (PyCFunction)posix_open,\
                         METH_VARARGS | METH_KEYWORDS,
                         posix_open__doc__},
-    {"close",           posix_close_, METH_VARARGS, posix_close__doc__},
+    {"close",           _posix_close_, METH_VARARGS, posix_close__doc__},
     {"closerange",      posix_closerange, METH_VARARGS, posix_closerange__doc__},
     {"device_encoding", device_encoding, METH_VARARGS, device_encoding__doc__},
     {"dup",             posix_dup, METH_VARARGS, posix_dup__doc__},