diff --git a/chart/proxmox-exporter/Chart.yaml b/chart/proxmox-exporter/Chart.yaml
index ced0768..accf706 100644
--- a/chart/proxmox-exporter/Chart.yaml
+++ b/chart/proxmox-exporter/Chart.yaml
@@ -15,7 +15,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.2.3
+version: 0.2.4
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
diff --git a/chart/proxmox-exporter/templates/prometheusrule.yaml b/chart/proxmox-exporter/templates/prometheusrule.yaml
index 8ca7d8f..ccf5087 100644
--- a/chart/proxmox-exporter/templates/prometheusrule.yaml
+++ b/chart/proxmox-exporter/templates/prometheusrule.yaml
@@ -9,6 +9,10 @@ spec:
   groups:
     - name: ProxmoxNodes
       rules:
+        {{- with .Values.prometheusRule.additionalRules }}
+          {{- toYaml . | nindent 8 }}
+        {{- end }}
+        {{- if .Values.prometheusRule.enableBuiltinRules }}
         - alert: ProxmoxNodeDown
           annotations:
             summary: Proxmox node {{ printf "{{ $labels.node }}" }} is down
@@ -141,4 +145,5 @@ spec:
           for: 5m
           labels:
             severity: critical
+        {{- end }}
 {{- end }}
diff --git a/chart/proxmox-exporter/values.yaml b/chart/proxmox-exporter/values.yaml
index d177b39..eb6ec46 100644
--- a/chart/proxmox-exporter/values.yaml
+++ b/chart/proxmox-exporter/values.yaml
@@ -50,6 +50,21 @@ serviceMonitor:
 prometheusRule:
   enabled: false
 
+  # Disable this to use your own rules provided in additionalRules
+  enableBuiltinRules: true
+
+  # A list of additional rules to provide to the PrometheusRule CR
+  # additionalRules:
+  #   - alert: ProxmoxRuleName
+  #     annotations:
+  #       summary: Proxmox node {{ printf "{{ $labels.node }}" }} is down
+  #       description: Check the alerting Proxmox host
+  #     expr: |
+  #       proxmox_metric_name != 0
+  #     for: 1m
+  #     labels:
+  #       severity: critical
+
 serviceAccount:
   # Specifies whether a service account should be created
   create: true