diff --git a/NOTICE b/NOTICE
new file mode 100644
index 0000000..0060b6a
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1,6 @@
+Copyright © 2019 Banzai Cloud
+
+Portions of this software were developed in the Kubernetes project: https://github.com/kubernetes/kubernetes
+
+The source file patch/annotation.go is based on https://github.com/kubernetes/kubernetes/blob/3d0c961d57bb90c112a0ee2f5ccdcb5c8570ad32/pkg/kubectl/apply.go
+The source file patch/deletenull.go is based on https://github.com/kubernetes/kubernetes/blob/433b448e8d42da70df5d50f4ce667bcb36aeeec2/staging/src/k8s.io/apimachinery/pkg/util/jsonmergepatch/patch.go
diff --git a/patch/annotation.go b/patch/annotation.go
index a94c68d..8892f93 100644
--- a/patch/annotation.go
+++ b/patch/annotation.go
@@ -1,18 +1,16 @@
-/*
-Copyright 2014 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.
-*/
+// Copyright © 2019 Banzai Cloud
+//
+// 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.
 
 package objectmatcher
 
diff --git a/patch/deletenull.go b/patch/deletenull.go
index 59735f7..5da4058 100644
--- a/patch/deletenull.go
+++ b/patch/deletenull.go
@@ -1,3 +1,17 @@
+// Copyright © 2019 Banzai Cloud
+//
+// 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.
+
 package objectmatcher
 
 import (
diff --git a/patch/patch.go b/patch/patch.go
index 55de30e..39150e7 100644
--- a/patch/patch.go
+++ b/patch/patch.go
@@ -1,3 +1,17 @@
+// Copyright © 2019 Banzai Cloud
+//
+// 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.
+
 package objectmatcher
 
 import (