diff --git a/Lib/test/pickletester.py b/Lib/test/pickletester.py
index 6c621e5..0d2441a 100644
--- a/Lib/test/pickletester.py
+++ b/Lib/test/pickletester.py
@@ -570,7 +570,7 @@
         self.assertEqual(x.__dict__, y.__dict__)
 
     def test_newobj_generic(self):
-        for proto in [0, 1, 2]:
+        for proto in protocols:
             for C in myclasses:
                 B = C.__base__
                 x = C(C.sample)