diff --git a/salt/common/grafana/grafana_dashboards/forward_nodes/sensor.json b/salt/common/grafana/grafana_dashboards/forward_nodes/sensor.json
index a2af30d76..365b75630 100644
--- a/salt/common/grafana/grafana_dashboards/forward_nodes/sensor.json
+++ b/salt/common/grafana/grafana_dashboards/forward_nodes/sensor.json
@@ -263,7 +263,7 @@
           ]
         }
       ],
-      "thresholds": "0,{{ ROOTFS * .80 }},{{ ROOTFS * .90 }}",
+      "thresholds": "0,{{ ROOTFS * .80|float }},{{ ROOTFS * .90|float }}",
       "title": "{{ SERVERNAME }} - Disk Used(/)",
       "transparent": false,
       "type": "singlestat",