diff --git a/tests/hazmat/primitives/test_ec.py b/tests/hazmat/primitives/test_ec.py
index f2e340b..59bdc52 100644
--- a/tests/hazmat/primitives/test_ec.py
+++ b/tests/hazmat/primitives/test_ec.py
@@ -715,7 +715,8 @@
 @pytest.mark.requires_backend_interface(interface=EllipticCurveBackend)
 class TestECDSAVerification(object):
     def test_signature_not_bytes(self, backend):
-        key = ec.generate_private_key(ec.SECP192R1(), backend)
+        _skip_curve_unsupported(backend, ec.SECP256R1())
+        key = ec.generate_private_key(ec.SECP256R1(), backend)
         public_key = key.public_key()
         with pytest.raises(TypeError):
             public_key.verifier(1234, ec.ECDSA(hashes.SHA256()))