diff --git a/src/puppeteer/index.ts b/src/puppeteer/index.ts
index 82f7c86d..9840fc2e 100644
--- a/src/puppeteer/index.ts
+++ b/src/puppeteer/index.ts
@@ -313,7 +313,7 @@ async function handleToolCall(name: string, args: any): Promise<{ toolResult: Ca
         const logs = await page.evaluate(() => {
           Object.assign(console, window.mcpHelper.originalConsole);
           const logs = window.mcpHelper.logs;
-          delete ( window.mcpHelper as any).logs;
+          delete ( window as any).mcpHelper;
           return logs;
         });
 
@@ -426,4 +426,4 @@ async function runServer() {
   await server.connect(transport);
 }
 
-runServer().catch(console.error);
\ No newline at end of file
+runServer().catch(console.error);