--- ./Modules/posixmodule.c.orig
+++ ./Modules/posixmodule.c
@@ -7846,7 +7846,7 @@
 Close a file descriptor (for low level IO).");
 
 static PyObject *
-posix_close(PyObject *self, PyObject *args)
+_posix_close(PyObject *self, PyObject *args)
 {
     int fd, res;
     if (!PyArg_ParseTuple(args, "i:close", &fd))
@@ -11262,7 +11262,7 @@
     {"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__},