diff --git a/deployments/monitor/grafana/milvus-dashboard.json b/deployments/monitor/grafana/milvus-dashboard.json
index 337ff3ced5..7f1660098d 100644
--- a/deployments/monitor/grafana/milvus-dashboard.json
+++ b/deployments/monitor/grafana/milvus-dashboard.json
@@ -4578,7 +4578,7 @@
           "label": null,
           "logBase": 1,
           "max": null,
-          "min": null,
+          "min": 0,
           "show": false
         }
       ],