diff --git a/charts/kubezero-istio/templates/istio-private-ingress.yaml b/charts/kubezero-istio/templates/istio-private-ingress.yaml
index ffc6288..f064c6b 100644
--- a/charts/kubezero-istio/templates/istio-private-ingress.yaml
+++ b/charts/kubezero-istio/templates/istio-private-ingress.yaml
@@ -30,6 +30,8 @@ spec:
             name: istio-private-ingressgateway
         {{- end }}
         env:
+        - name: TERMINATION_DRAIN_DURATION_SECONDS
+          value: "60"
         - name: ISTIO_META_HTTP10
           value: '"1"'
         - name: ISTIO_META_ROUTER_MODE