diff --git a/proposals/4183-submitToken-error-codes.md b/proposals/4183-submitToken-error-codes.md
index 788f0a9245d..9ff95157700 100644
--- a/proposals/4183-submitToken-error-codes.md
+++ b/proposals/4183-submitToken-error-codes.md
@@ -18,10 +18,10 @@ The [`POST
 endpoint in the C/S API also specifies a `submit_url` response parameter, defining its parameters to be the same as the
 Identity API's `submitToken` endpoints. Everything this MSC specifies applies to this endpoint in the same way.
 
-Note that the email `submitToken` endpoint ([`POST
+Note that the `POST` version of the email `submitToken` endpoint ([`POST
 /_matrix/identity/v2/validate/email/submitToken`](https://spec.matrix.org/v1.11/identity-service-api/#post_matrixidentityv2validateemailsubmittoken))
-is not generally used in practice: Sydent's emails includes a link to click and therefore use the
-`GET` version. This proposal updates both for consistency.
+is not generally used in practice (and does not exist on the C/S API): Sydent's emails includes a link to click and
+therefore use the `GET` version. This proposal updates both for consistency.
 
 ## Proposal