diff --git a/src/auto-reply/reply/agent-runner-execution.test.ts b/src/auto-reply/reply/agent-runner-execution.test.ts
index ee30e41f0a..e805eddd0d 100644
--- a/src/auto-reply/reply/agent-runner-execution.test.ts
+++ b/src/auto-reply/reply/agent-runner-execution.test.ts
@@ -1084,7 +1084,7 @@ describe("runAgentTurnWithFallback", () => {
     expect(result.kind).toBe("final");
     if (result.kind === "final") {
       expect(result.payload.text).toBe(
-        '⚠️ No API key found for provider "openai". You are authenticated with OpenAI Codex OAuth. Use openai-codex/gpt-5.4 (OAuth) or set OPENAI_API_KEY to use openai/gpt-5.4.',
+        "⚠️ Missing API key for OpenAI on the gateway. Use `openai-codex/gpt-5.4` for OAuth, or set `OPENAI_API_KEY`, then try again.",
       );
     }
   });