diff --git a/Lib/platform.py b/Lib/platform.py
index 6db7f19..710f21e 100755
--- a/Lib/platform.py
+++ b/Lib/platform.py
@@ -765,6 +765,7 @@
                    0x2: 'PowerPC',
                    0xa: 'i386'}.get(sysa,'')
 
+    versioninfo=('', '', '')
     return release,versioninfo,machine
 
 def _mac_ver_xml():
diff --git a/Lib/test/test_platform.py b/Lib/test/test_platform.py
index 1ae5888..941d428 100644
--- a/Lib/test/test_platform.py
+++ b/Lib/test/test_platform.py
@@ -191,7 +191,7 @@
             self.assertEqual(res[1], ('', '', ''))
 
             if sys.byteorder == 'little':
-                self.assertEqual(res[2], 'i386')
+                self.assertIn(res[2], ('i386', 'x86_64'))
             else:
                 self.assertEqual(res[2], 'PowerPC')