diff --git a/hack/make-release-artifacts.sh b/hack/make-release-artifacts.sh
index 2f412e7..507277c 100755
--- a/hack/make-release-artifacts.sh
+++ b/hack/make-release-artifacts.sh
@@ -34,9 +34,9 @@ print_license_header() {
 
 print_autogenerated_warning() {
     cat<<EOF
-----------------------------------------------------------
-WARNING: This file is autogenerated. Do not manually edit.
-----------------------------------------------------------
+# ----------------------------------------------------------
+# WARNING: This file is autogenerated. Do not manually edit.
+# ----------------------------------------------------------
 
 EOF
 }
@@ -76,6 +76,8 @@ mk_kubernetes_manifests() {
 }
 
 mk_istio_manifests() {
+    print_license_header
+    print_autogenerated_warning
     read_manifests "${SCRIPTDIR}/../istio-manifests"
 }
 
diff --git a/release/istio-manifests.yaml b/release/istio-manifests.yaml
index b5ff965..fb89f70 100644
--- a/release/istio-manifests.yaml
+++ b/release/istio-manifests.yaml
@@ -1,3 +1,21 @@
+# Copyright 2018 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# ----------------------------------------------------------
+# WARNING: This file is autogenerated. Do not manually edit.
+# ----------------------------------------------------------
+
 apiVersion: networking.istio.io/v1alpha3
 kind: Gateway
 metadata:
diff --git a/release/kubernetes-manifests.yaml b/release/kubernetes-manifests.yaml
index b13febb..6fd20cd 100644
--- a/release/kubernetes-manifests.yaml
+++ b/release/kubernetes-manifests.yaml
@@ -12,9 +12,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-----------------------------------------------------------
-WARNING: This file is autogenerated. Do not manually edit.
-----------------------------------------------------------
+# ----------------------------------------------------------
+# WARNING: This file is autogenerated. Do not manually edit.
+# ----------------------------------------------------------
 
 apiVersion: apps/v1
 kind: Deployment