diff --git a/gui/src/main/preload.ts b/gui/src/main/preload.ts
index 94a9f181..f612e0d1 100644
--- a/gui/src/main/preload.ts
+++ b/gui/src/main/preload.ts
@@ -3,7 +3,7 @@
 // SPDX-License-Identifier: GPL-3.0-only
 //
 
-import { contextBridge, clipboard } from "electron";
+import { contextBridge, clipboard, contentTracing } from "electron";
 import { promisify } from "util";
 import grpc from "@grpc/grpc-js";
 import daemonM from "../daemon/schema/daemon_pb";
@@ -303,6 +303,17 @@ contextBridge.exposeInMainWorld(
   }
 );
 
+contextBridge.exposeInMainWorld(
+  "getOutboxMessages",
+  async (
+    getOutboxMessagesRequest: daemon_pb.GetOutboxMessagesRequest.AsObject
+  ): Promise<daemon_pb.GetOutboxMessagesResponse> => {
+    // unimplemented
+    console.error("getOutboxMessages not implemented");
+    throw new Error("getOutboxMessages not implemented");
+  }
+);
+
 contextBridge.exposeInMainWorld("getOutboxMessagesOLD", async () => {
   if (FAKE_DATA) {
     return [