diff --git a/Lib/test/test_sys.py b/Lib/test/test_sys.py
index 0e364af..1d0e2ef 100644
--- a/Lib/test/test_sys.py
+++ b/Lib/test/test_sys.py
@@ -369,6 +369,8 @@
         self.assertEqual(vi[3], vi.releaselevel)
         self.assertEqual(vi[4], vi.serial)
         self.assertTrue(vi > (1,0,0))
+        self.assertIsInstance(sys.float_repr_style, str)
+        self.assertTrue(sys.float_repr_style in ('short', 'legacy'))
 
     def test_43581(self):
         # Can't use sys.stdout, as this is a cStringIO object when