diff --git a/.buildkite/test-pipeline.yaml b/.buildkite/test-pipeline.yaml
index 133ba792680d..150dc40a9173 100644
--- a/.buildkite/test-pipeline.yaml
+++ b/.buildkite/test-pipeline.yaml
@@ -812,7 +812,7 @@ steps:
   timeout_in_minutes: 60
   working_dir: "/vllm-workspace/"
   gpu: b200
-  # optional: true
+  optional: true # disable while debugging
   source_file_dependencies:
   - tests/evals/gpt_oss
   - vllm/model_executor/models/gpt_oss.py