diff --git a/web/src/plugins/streaming/StreamingTab.tsx b/web/src/plugins/streaming/StreamingTab.tsx
index 3abaeb6..d3856f9 100644
--- a/web/src/plugins/streaming/StreamingTab.tsx
+++ b/web/src/plugins/streaming/StreamingTab.tsx
@@ -81,7 +81,7 @@ export default function StreamingTab({ data }: { data: any }) {
 
   // Notify Electron about streaming status for close-warning
   useEffect(() => {
-    (window as any).electronAPI?.setStreaming(isBroadcasting || viewing !== null);
+    (window as any).electronAPI?.setStreaming?.(isBroadcasting || viewing !== null);
   }, [isBroadcasting, viewing]);
 
   // ── Elapsed time ticker ──