diff --git a/runs/frontier-fidelity-envelope-v1/run_qwen235_v020_real_surface.sh b/runs/frontier-fidelity-envelope-v1/run_qwen235_v020_real_surface.sh
index a45d5bf..41b63c0 100644
--- a/runs/frontier-fidelity-envelope-v1/run_qwen235_v020_real_surface.sh
+++ b/runs/frontier-fidelity-envelope-v1/run_qwen235_v020_real_surface.sh
@@ -19,6 +19,9 @@ RESUME_VALID_CELLS="${RESUME_VALID_CELLS:-true}"
 PORT="${BASE_PORT:-9300}"
 REQUEST_COUNT="$(wc -l < "${TRACE_ROOT}/tp4/private/real_requests.jsonl")"
 
+export PATH="/usr/local/cuda/bin:${PATH}"
+command -v nvcc >/dev/null
+
 [[ "$(wc -l < "${TRACE_ROOT}/tp8/private/real_requests.jsonl")" == "${REQUEST_COUNT}" ]] || {
   echo 'ERROR: TP-specific request counts differ' >&2
   exit 1