diff --git a/src/user_engine/adapters/registration_verification.py b/src/user_engine/adapters/registration_verification.py
index 715d497..97d3969 100644
--- a/src/user_engine/adapters/registration_verification.py
+++ b/src/user_engine/adapters/registration_verification.py
@@ -31,7 +31,7 @@ class HTTPRegistrationVerificationAdapter:
             "/v1/registration-verifications",
             {
                 "registration_id": request.registration_id,
-                "email": request.normalized_email,
+                "normalized_email": request.normalized_email,
                 "preferred_username": request.preferred_username,
                 "client_id": request.client_id,
                 "tenant": request.tenant,
diff --git a/tests/test_registration_verification_adapter.py b/tests/test_registration_verification_adapter.py
index 442018f..333841e 100644
--- a/tests/test_registration_verification_adapter.py
+++ b/tests/test_registration_verification_adapter.py
@@ -35,6 +35,9 @@ class RegistrationVerificationAdapterTests(unittest.TestCase):
         self.assertEqual("vrq_opaque", receipt.request_id)
         request = opener.call_args.args[0]
         self.assertEqual("Bearer secret", request.headers["Authorization"])
+        payload = json.loads(request.data)
+        self.assertEqual("person@example.test", payload["normalized_email"])
+        self.assertNotIn("email", payload)
         self.assertNotIn(b"return_to", request.data)
 
     @patch("user_engine.adapters.registration_verification.urlopen")