diff --git a/keyserver/addons/rust-node-addon/rust-binding-types.js b/keyserver/addons/rust-node-addon/rust-binding-types.js
--- a/keyserver/addons/rust-node-addon/rust-binding-types.js
+++ b/keyserver/addons/rust-node-addon/rust-binding-types.js
@@ -2,19 +2,6 @@
 
 import type { SignedIdentityKeysBlob } from 'lib/types/crypto-types.js';
 
-type tunnelbrokerOnReceiveCallback = (
-  err: Error | null,
-  payload: string,
-) => mixed;
-
-declare class TunnelbrokerClientClass {
-  constructor(
-    deviceId: string,
-    onReceiveCallback: tunnelbrokerOnReceiveCallback,
-  ): TunnelbrokerClientClass;
-  publish(toDeviceId: string, payload: string): Promise<void>;
-}
-
 type RustNativeBindingAPI = {
   +registerUser: (
     username: string,
@@ -26,7 +13,6 @@
     message: string,
     signature: string,
   ) => Promise<void>,
-  +TunnelbrokerClient: Class<TunnelbrokerClientClass>,
 };
 
 export type { RustNativeBindingAPI };