diff --git a/pkg/kubelet/apis/cri/runtime/v1alpha2/api.proto b/pkg/kubelet/apis/cri/runtime/v1alpha2/api.proto
index 8819607692d..28fb45816dc 100644
--- a/pkg/kubelet/apis/cri/runtime/v1alpha2/api.proto
+++ b/pkg/kubelet/apis/cri/runtime/v1alpha2/api.proto
@@ -1,3 +1,19 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+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.
+*/
+
 // To regenerate api.pb.go run hack/update-generated-runtime.sh
 syntax = 'proto3';
 
diff --git a/pkg/kubelet/util/pluginwatcher/example_plugin_apis/v1beta1/api.proto b/pkg/kubelet/util/pluginwatcher/example_plugin_apis/v1beta1/api.proto
index 14aa7df2c4d..7f6cf218354 100644
--- a/pkg/kubelet/util/pluginwatcher/example_plugin_apis/v1beta1/api.proto
+++ b/pkg/kubelet/util/pluginwatcher/example_plugin_apis/v1beta1/api.proto
@@ -1,3 +1,19 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+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.
+*/
+
 syntax = 'proto3';
 
 package v1beta1;
diff --git a/pkg/kubelet/util/pluginwatcher/example_plugin_apis/v1beta2/api.proto b/pkg/kubelet/util/pluginwatcher/example_plugin_apis/v1beta2/api.proto
index e34697f3a66..62760647cd6 100644
--- a/pkg/kubelet/util/pluginwatcher/example_plugin_apis/v1beta2/api.proto
+++ b/pkg/kubelet/util/pluginwatcher/example_plugin_apis/v1beta2/api.proto
@@ -1,3 +1,19 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+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.
+*/
+
 syntax = 'proto3';
 
 package v1beta2;
diff --git a/staging/src/k8s.io/apiserver/pkg/storage/value/encrypt/envelope/v1beta1/service.proto b/staging/src/k8s.io/apiserver/pkg/storage/value/encrypt/envelope/v1beta1/service.proto
index dbde9080e70..b6c2f31c7ea 100644
--- a/staging/src/k8s.io/apiserver/pkg/storage/value/encrypt/envelope/v1beta1/service.proto
+++ b/staging/src/k8s.io/apiserver/pkg/storage/value/encrypt/envelope/v1beta1/service.proto
@@ -1,3 +1,19 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+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.
+*/
+
 // To regenerate service.pb.go run hack/update-generated-kms.sh
 syntax = "proto3";