diff --git a/tests/blueprints/test_guards.py b/tests/blueprints/test_guards.py
index 79167f0..062a458 100644
--- a/tests/blueprints/test_guards.py
+++ b/tests/blueprints/test_guards.py
@@ -636,7 +636,7 @@ def test_openai_v1_chat_completions__raises_404(mocker):
     mocker.patch("guardrails_api.blueprints.guards.CacheClient.set")
     # expect 404 HttpError
     with pytest.raises(Exception) as e:
-        response = openai_v1_chat_completions("My%20Guard's%20Name")
+        openai_v1_chat_completions("My%20Guard's%20Name")
     assert str(e.value) == '404 Not Found: Guard not found'
 
     mock_get_guard.assert_called_once_with("My Guard's Name")