diff --git a/docs/metrics/prometheus/grafana/minio-dashboard.json b/docs/metrics/prometheus/grafana/minio-dashboard.json
index 6361c059e..9463b4e04 100644
--- a/docs/metrics/prometheus/grafana/minio-dashboard.json
+++ b/docs/metrics/prometheus/grafana/minio-dashboard.json
@@ -500,7 +500,7 @@
       "targets": [
         {
           "exemplar": true,
-          "expr": "sum(minio_bucket_usage_total_bytes{job=\"$scrape_jobs\"}) by (instance)",
+	  "expr": "max(sum(minio_bucket_usage_total_bytes{job=\"$scrape_jobs\"}) by (instance,server))",
           "interval": "",
           "legendFormat": "Usage",
           "refId": "A",
@@ -3180,4 +3180,4 @@
   "uid": "TgmJnqnnk",
   "version": 5,
   "weekStart": ""
-}
\ No newline at end of file
+}