diff --git a/charts/kubezero-metrics/values.yaml b/charts/kubezero-metrics/values.yaml
index 8250a463..6d436c42 100644
--- a/charts/kubezero-metrics/values.yaml
+++ b/charts/kubezero-metrics/values.yaml
@@ -121,6 +121,7 @@ prometheus-adapter:
   # Basic rules for HPA to work replacing heaptster, taken from kube-prometheus project
   # https://github.com/coreos/kube-prometheus/blob/master/manifests/prometheus-adapter-configMap.yaml
   rules:
+    default: false
     resource:
       cpu:
         containerQuery: sum(rate(container_cpu_usage_seconds_total{<<.LabelMatchers>>}[3m])) by (<<.GroupBy>>)