1 files changed, 3 insertions, 2 deletions
diff --git a/tests/test_x509.py b/tests/test_x509.py
index 441d634b..78def5f8 100644
--- a/tests/test_x509.py
+++ b/tests/test_x509.py
@@ -784,9 +784,10 @@ class TestCertificateSigningRequestBuilder(object):
                 x509.NameAttribute(x509.OID_COMMON_NAME, u'cryptography.io'),
             ])
         )
-        with pytest.raises(ValueError):
+        with pytest.raises(NotImplementedError):
             builder.add_extension(
-                x509.AuthorityKeyIdentifier('keyid', None, None)
+                x509.AuthorityKeyIdentifier('keyid', None, None),
+                critical=False,
             )