Update proposals/2403-knock.md
@@ -346,7 +346,7 @@ homeserver. The response contains `StrippedStateEvent`s with room metadata
The event types that can be sent here should match those of the `/sync`
extensions mentioned above.
-This is loosely based off of the
+This is loosely based on the
[federated invite](https://matrix.org/docs/spec/server_server/r0.1.4#put-matrix-federation-v2-invite-roomid-eventid)
request content.
```json
