diff --git a/tests/test_x509_ext.py b/tests/test_x509_ext.py
index 14df9a2..75fb914 100644
--- a/tests/test_x509_ext.py
+++ b/tests/test_x509_ext.py
@@ -843,7 +843,6 @@
         exts = cert.extensions
         with pytest.raises(x509.ExtensionNotFound) as exc:
             ext = exts.get_extension_for_class(x509.BasicConstraints)
-            assert ext is None
         assert exc.value.oid == ExtensionOID.BASIC_CONSTRAINTS
 
     def test_one_extension_get_for_class(self, backend):