Fix a small typo in test_importlib.
diff --git a/Lib/test/test_importlib/import_/test___package__.py b/Lib/test/test_importlib/import_/test___package__.py
index 8d3da98a..ff9ddb6 100644
--- a/Lib/test/test_importlib/import_/test___package__.py
+++ b/Lib/test/test_importlib/import_/test___package__.py
@@ -75,11 +75,11 @@
 Frozen_UsingPackagePEP302, Source_UsingPackagePEP302 = util.test_both(
         Using__package__PEP302, __import__=util.__import__)
 
-class Using__package__PEP302(Using__package__):
+class Using__package__PEP451(Using__package__):
     mock_modules = util.mock_spec
 
 Frozen_UsingPackagePEP451, Source_UsingPackagePEP451 = util.test_both(
-        Using__package__PEP302, __import__=util.__import__)
+        Using__package__PEP451, __import__=util.__import__)
 
 
 class Setting__package__: