diff --git a/charts/nut-exporter/Chart.yaml b/charts/nut-exporter/Chart.yaml
index 167407d7fe178dc8b9584521dc5b58540d376be4..2a95f98f14108a38401dbbe62ea74b1538ed0ef4 100644
--- a/charts/nut-exporter/Chart.yaml
+++ b/charts/nut-exporter/Chart.yaml
@@ -13,5 +13,5 @@ sources:
   - https://github.com/acolombier/nut_exporter/tree/feat/add-helm-chart
 
 type: application
-version: 0.3.6
+version: 0.3.7
 appVersion: 3.0.0
diff --git a/charts/nut-exporter/README.md b/charts/nut-exporter/README.md
index 2d85b27417b275275892ac21ee67f28727447162..214060c81caa1176fe991b0fd505cd4ed8d16396 100644
--- a/charts/nut-exporter/README.md
+++ b/charts/nut-exporter/README.md
@@ -1,6 +1,6 @@
 # nut-exporter
 
-![Version: 0.3.6](https://img.shields.io/badge/Version-0.3.6-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 3.0.0](https://img.shields.io/badge/AppVersion-3.0.0-informational?style=flat-square)
+![Version: 0.3.7](https://img.shields.io/badge/Version-0.3.7-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 3.0.0](https://img.shields.io/badge/AppVersion-3.0.0-informational?style=flat-square)
 
 Installs NUT exporter in Kubernetes
 
diff --git a/charts/nut-exporter/dashboards/default.json b/charts/nut-exporter/dashboards/default.json
index 58c06bfae7edf74d3a4a70f0dc7219f94a2a8d23..9218e4a6878151002f76a6fd2c13ff1c4c2ea981 100755
--- a/charts/nut-exporter/dashboards/default.json
+++ b/charts/nut-exporter/dashboards/default.json
@@ -351,7 +351,7 @@
             "type": "prometheus",
             "uid": "${datasource}"
           },
-          "expr": "min by (ups) (network_ups_tools_battery_charge{ups=\"$ups\")}",
+          "expr": "min by (ups) (network_ups_tools_battery_charge{ups=\"$ups\"})",
           "instant": false,
           "interval": "",
           "legendFormat": "",