diff --git a/Lib/test/test_atexit.py b/Lib/test/test_atexit.py
@@ -3,6 +3,7 @@
import io
import atexit
from test import support

### helpers
def h1():
@@ -152,6 +153,21 @@ def test_bound_methods(self):
        atexit._run_exitfuncs()
        self.assertEqual(l, [5])


@support.cpython_only
class SubinterpreterTest(unittest.TestCase):