diff --git a/acme/acme/messages.py b/acme/acme/messages.py
index 5be458580..7e86b0c3b 100644
--- a/acme/acme/messages.py
+++ b/acme/acme/messages.py
@@ -523,7 +523,7 @@ class Order(ResourceBody):
     """
     identifiers = jose.Field('identifiers', omitempty=True)
     status = jose.Field('status', decoder=Status.from_json,
-                        omitempty=True, default=STATUS_PENDING)
+                        omitempty=True)
     authorizations = jose.Field('authorizations', omitempty=True)
     certificate = jose.Field('certificate', omitempty=True)
     finalize = jose.Field('finalize', omitempty=True)
@@ -553,4 +553,3 @@ class OrderResource(ResourceWithURI):
 class NewOrder(Order):
     """New order."""
     resource_type = 'new-order'
-    resource = fields.Resource(resource_type)
diff --git a/acme/acme/messages_test.py b/acme/acme/messages_test.py
index 0e2d8c62d..876fbe825 100644
--- a/acme/acme/messages_test.py
+++ b/acme/acme/messages_test.py
@@ -424,6 +424,19 @@ class OrderResourceTest(unittest.TestCase):
             'authorizations': None,
         })
 
+class NewOrderTest(unittest.TestCase):
+    """Tests for acme.messages.NewOrder."""
+
+    def setUp(self):
+        from acme.messages import NewOrder
+        self.reg = NewOrder(
+            identifiers=mock.sentinel.identifiers)
+
+    def test_to_partial_json(self):
+        self.assertEqual(self.reg.to_json(), {
+            'identifiers': mock.sentinel.identifiers,
+        })
+
 
 if __name__ == '__main__':
     unittest.main()  # pragma: no cover