diff --git a/federationapi/routing/invite.go b/federationapi/routing/invite.go
index 332f7f70c..9fce46a09 100644
--- a/federationapi/routing/invite.go
+++ b/federationapi/routing/invite.go
@@ -101,6 +101,6 @@ func Invite(
 	// the other servers in the room that we have been invited.
 	return util.JSONResponse{
 		Code: http.StatusOK,
-		JSON: gomatrixserverlib.RespInvite{Event: signedEvent},
+		JSON: gomatrixserverlib.RespInviteV2{Event: signedEvent},
 	}
 }