diff --git a/README.md b/README.md
index 4cd215b9..bba11262 100644
--- a/README.md
+++ b/README.md
@@ -90,7 +90,7 @@ kubectl apply -f https://github.com/kubesphere/notification-manager/releases/dow
 #### Install with helm
 
 ```shell
-helm install notification-manager helm --create-namespace -n kubesphere-monitoring-system https://github.com/kubesphere/notification-manager/releases/download/v2.0.0/notification-manager.tgz
+helm install notification-manager --create-namespace -n kubesphere-monitoring-system https://github.com/kubesphere/notification-manager/releases/download/v2.0.0/notification-manager.tgz
 ```
 
 ### Configure NotificationManager 
diff --git a/helm/templates/notificationmanagers.yaml b/helm/templates/notificationmanagers.yaml
index 48889407..a6a83bbd 100644
--- a/helm/templates/notificationmanagers.yaml
+++ b/helm/templates/notificationmanagers.yaml
@@ -37,7 +37,6 @@ spec:
     type: kubesphere
   {{- end}}
   template:
-    { { - toYaml .Values.notificationmanager.template | nindent 4 } }
+    {{- toYaml .Values.notificationmanager.template | nindent 4 }}
   groupLabels:
-    { { - toYaml .Values.notificationmanager.groupLabels | nindent 4 } }
-
+    {{- toYaml .Values.notificationmanager.groupLabels | nindent 4 }}
\ No newline at end of file