diff --git a/stable/prometheus-adapter/Chart.yaml b/stable/prometheus-adapter/Chart.yaml
index 8fbfac790c54..8647b9a6c1fd 100644
--- a/stable/prometheus-adapter/Chart.yaml
+++ b/stable/prometheus-adapter/Chart.yaml
@@ -1,6 +1,6 @@
 apiVersion: v1
 name: prometheus-adapter
-version: 2.1.1
+version: 2.1.2
 appVersion: v0.6.0
 description: A Helm chart for k8s prometheus adapter
 home: https://github.com/DirectXMan12/k8s-prometheus-adapter
diff --git a/stable/prometheus-adapter/templates/custom-metrics-apiservice.yaml b/stable/prometheus-adapter/templates/custom-metrics-apiservice.yaml
index 676402143caa..1eb380d70f99 100644
--- a/stable/prometheus-adapter/templates/custom-metrics-apiservice.yaml
+++ b/stable/prometheus-adapter/templates/custom-metrics-apiservice.yaml
@@ -1,3 +1,4 @@
+{{- if or .Values.rules.default .Values.rules.custom }}
 apiVersion: apiregistration.k8s.io/v1beta1
 kind: APIService
 metadata:
@@ -19,3 +20,4 @@ spec:
   insecureSkipTLSVerify: {{ if .Values.tls.enable }}false{{ else }}true{{ end }}
   groupPriorityMinimum: 100
   versionPriority: 100
+{{- end }}