diff -urN a/Modules/posixmodule.c b/Modules/posixmodule.c
--- a/Modules/posixmodule.c	2014-10-11 14:23:43.199500200 +0100
+++ b/Modules/posixmodule.c	2014-10-11 14:23:45.146611500 +0100
@@ -1444,10 +1444,10 @@
 
     if(!SetCurrentDirectoryW(path))
         return FALSE;
-    result = GetCurrentDirectoryW(Py_ARRAY_LENGTH(new_path), new_path);
+    result = GetCurrentDirectoryW(Py_ARRAY_LENGTH(_new_path), new_path);
     if (!result)
         return FALSE;
-    if (result > Py_ARRAY_LENGTH(new_path)) {
+    if (result > Py_ARRAY_LENGTH(_new_path)) {
         new_path = PyMem_RawMalloc(result * sizeof(wchar_t));
         if (!new_path) {
             SetLastError(ERROR_OUTOFMEMORY);