diff --git a/charts/kubezero/templates/istio.yaml b/charts/kubezero/templates/istio.yaml
index 16d2b948..9b696d8c 100644
--- a/charts/kubezero/templates/istio.yaml
+++ b/charts/kubezero/templates/istio.yaml
@@ -4,7 +4,7 @@
     automated:
       prune: true
 
- ignoreDifferences:
+  ignoreDifferences:
   - group: apiextensions.k8s.io
     kind: CustomResourceDefinition
     jsonPointers: