diff --git a/specification/1-client_server_api.rst b/specification/1-client_server_api.rst
index e3817046..988f7bc4 100644
--- a/specification/1-client_server_api.rst
+++ b/specification/1-client_server_api.rst
@@ -242,7 +242,7 @@ To respond to this type, reply with an auth dict as follows::
     "type": "m.login.token",
     "user": "<user_id or user localpart>",
     "token": "<token>",
-    "nonce": "<client generated nonce>"
+    "txn_id": "<client generated nonce>"
   }
 
 The ``nonce`` should be a random string generated by the client for the