diff --git a/src/app/ipc/preload.js b/src/app/ipc/preload.js
index 34ef6fe..969deaf 100644
--- a/src/app/ipc/preload.js
+++ b/src/app/ipc/preload.js
@@ -54,7 +54,9 @@ globalThis.chrome = {
 };
 
 window.ipc.addEventListener('message', (message) => {
-    window.qt.webChannelTransport.onmessage(message);
+    if (typeof window.qt.webChannelTransport.onmessage === 'function') {
+        window.qt.webChannelTransport.onmessage(message);
+    }
 });
 
 console.log('IPC script injected');
\ No newline at end of file