diff --git a/ceph/files/grafana_dashboards/hosts-overview_prometheus.json b/ceph/files/grafana_dashboards/hosts-overview_prometheus.json
index bdc6a90..8112cee 100644
--- a/ceph/files/grafana_dashboards/hosts-overview_prometheus.json
+++ b/ceph/files/grafana_dashboards/hosts-overview_prometheus.json
@@ -577,7 +577,7 @@
       "tableColumn": "Value",
       "targets": [
         {
-          "expr": "avg (\n  ((irate(diskio_io_time[5m]) / 10 )\n  ) *\n  on(host, name) diskio_io_time{host=~\"($osd_hosts).*\"}\n)",
+          "expr": "avg ( (irate(diskio_io_time{host=~\"($osd_hosts).*\"}[5m]) / 10 ) )",
           "format": "table",
           "instant": true,
           "intervalFactor": 1,