Index: Modules/posixmodule.c
===================================================================
--- Modules/posixmodule.c	(revision 61201)
+++ Modules/posixmodule.c	(working copy)
@@ -2517,14 +2517,17 @@
 posix_rename(PyObject *self, PyObject *args)
 {
 #ifdef MS_WINDOWS
-	PyObject *o1, *o2;
+	PyObject *o1 = NULL, *o2 = NULL;
 	char *p1, *p2;
 	BOOL result;
 	if (unicode_file_names()) {
 	    if (!PyArg_ParseTuple(args, "O&O&:rename", 
 		convert_to_unicode, &o1,
-		convert_to_unicode, &o2))
+		convert_to_unicode, &o2)) {
+		    Py_XDECREF(o1);
+		    Py_XDECREF(o2);
 		    PyErr_Clear();
+	    }
 	    else {
 		    Py_BEGIN_ALLOW_THREADS
 		    result = MoveFileW(PyUnicode_AsUnicode(o1),