diff --git a/tests/browser_e2e.js b/tests/browser_e2e.js
index 392bee8..bb2d09c 100644
--- a/tests/browser_e2e.js
+++ b/tests/browser_e2e.js
@@ -16,7 +16,7 @@ const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
   await page.waitForSelector(".card", { timeout: 15000 });
   check("landing renders agent-chosen cards", (await page.$$(".card")).length >= 4);
   const badge = await page.$eval("#agentBadge", (n) => n.textContent);
-  check("agent mode badge shown", /fallback|AI:|LLM/.test(badge), badge);
+  check("agent mode badge shown", /fallback|built-in|AI:|LLM/.test(badge), badge);
 
   // ask(): type into the chat popup and wait for the agent's reply (LLM replies take a few seconds)
   const ask = async (text) => {