diff --git a/tests/test_litellm/llms/chatgpt/test_codex.py b/tests/test_litellm/llms/chatgpt/test_codex.py
index 078c8d85ce3..a893ddbfb12 100644
--- a/tests/test_litellm/llms/chatgpt/test_codex.py
+++ b/tests/test_litellm/llms/chatgpt/test_codex.py
@@ -8,7 +8,7 @@ from litellm.llms.chatgpt.codex import build_sideband_request, parse_call_respon
 def test_signaling_rejects_invalid_upstream_call_id(location):
     response = httpx.Response(201, headers={"Location": location},
         extensions={"chatgpt_realtime": {"model": "gpt-live-1-codex"}})
-    with pytest.raises(ValueError):
+    with pytest.raises(ValueError, match="String should match pattern"):
         parse_call_response(response, "voice", "owner", 1000)