diff --git a/vllm/v1/metrics/prometheus.py b/vllm/v1/metrics/prometheus.py
index f125685353614..a364b286d21b9 100644
--- a/vllm/v1/metrics/prometheus.py
+++ b/vllm/v1/metrics/prometheus.py
@@ -69,9 +69,13 @@ def unregister_vllm_metrics():
 
 def shutdown_prometheus():
     """Shutdown prometheus metrics."""
+
+    path = _prometheus_multiproc_dir
+    if path is None:
+        return
     try:
         pid = os.getpid()
-        multiprocess.mark_process_dead(pid)
+        multiprocess.mark_process_dead(pid, path)
         logger.debug("Marked Prometheus metrics for process %d as dead", pid)
     except Exception as e:
         logger.error("Error during metrics cleanup: %s", str(e))