diff --git a/pkg/invoke/delegate.go b/pkg/invoke/delegate.go
index 9864e6f5..0a8198c3 100644
--- a/pkg/invoke/delegate.go
+++ b/pkg/invoke/delegate.go
@@ -1,3 +1,17 @@
+// Copyright 2016 CNI 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.
+
 package invoke
 
 import (
diff --git a/pkg/invoke/find_test.go b/pkg/invoke/find_test.go
index 00baa313..4135538d 100644
--- a/pkg/invoke/find_test.go
+++ b/pkg/invoke/find_test.go
@@ -1,3 +1,17 @@
+// Copyright 2016 CNI 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.
+
 package invoke_test
 
 import (
diff --git a/pkg/invoke/invoke_suite_test.go b/pkg/invoke/invoke_suite_test.go
index e570c964..72eb837f 100644
--- a/pkg/invoke/invoke_suite_test.go
+++ b/pkg/invoke/invoke_suite_test.go
@@ -1,3 +1,17 @@
+// Copyright 2016 CNI 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.
+
 package invoke_test
 
 import (
diff --git a/pkg/ns/ns_suite_test.go b/pkg/ns/ns_suite_test.go
index ff26ec2e..e2adaa4e 100644
--- a/pkg/ns/ns_suite_test.go
+++ b/pkg/ns/ns_suite_test.go
@@ -1,3 +1,17 @@
+// Copyright 2016 CNI 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.
+
 package ns_test
 
 import (
diff --git a/pkg/ns/ns_test.go b/pkg/ns/ns_test.go
index ad52f7f4..d9f182cf 100644
--- a/pkg/ns/ns_test.go
+++ b/pkg/ns/ns_test.go
@@ -1,3 +1,17 @@
+// Copyright 2016 CNI 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.
+
 package ns_test
 
 import (
diff --git a/pkg/skel/skel_suite_test.go b/pkg/skel/skel_suite_test.go
index 4820d5d9..df5a8e77 100644
--- a/pkg/skel/skel_suite_test.go
+++ b/pkg/skel/skel_suite_test.go
@@ -1,3 +1,17 @@
+// Copyright 2016 CNI 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.
+
 package skel
 
 import (
diff --git a/pkg/skel/skel_test.go b/pkg/skel/skel_test.go
index c6fb4e80..44695648 100644
--- a/pkg/skel/skel_test.go
+++ b/pkg/skel/skel_test.go
@@ -1,3 +1,17 @@
+// Copyright 2016 CNI 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.
+
 package skel
 
 import (
diff --git a/pkg/types/args_test.go b/pkg/types/args_test.go
index 123548cc..23aaf817 100644
--- a/pkg/types/args_test.go
+++ b/pkg/types/args_test.go
@@ -1,3 +1,17 @@
+// Copyright 2016 CNI 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.
+
 package types_test
 
 import (
diff --git a/pkg/types/types_suite_test.go b/pkg/types/types_suite_test.go
index b026169c..2b178cee 100644
--- a/pkg/types/types_suite_test.go
+++ b/pkg/types/types_suite_test.go
@@ -1,3 +1,17 @@
+// Copyright 2016 CNI 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.
+
 package types_test
 
 import (
diff --git a/pkg/utils/utils.go b/pkg/utils/utils.go
index 7ec139fd..33a2aa79 100644
--- a/pkg/utils/utils.go
+++ b/pkg/utils/utils.go
@@ -1,3 +1,17 @@
+// Copyright 2016 CNI 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.
+
 package utils
 
 import (
diff --git a/pkg/utils/utils_suite_test.go b/pkg/utils/utils_suite_test.go
index f160db60..ee614a70 100644
--- a/pkg/utils/utils_suite_test.go
+++ b/pkg/utils/utils_suite_test.go
@@ -1,3 +1,17 @@
+// Copyright 2016 CNI 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.
+
 package utils_test
 
 import (
diff --git a/pkg/utils/utils_test.go b/pkg/utils/utils_test.go
index 91bb8654..d703de42 100644
--- a/pkg/utils/utils_test.go
+++ b/pkg/utils/utils_test.go
@@ -1,3 +1,17 @@
+// Copyright 2016 CNI 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.
+
 package utils
 
 import (
diff --git a/plugins/main/loopback/loopback.go b/plugins/main/loopback/loopback.go
index b4e06bd9..dabe8078 100644
--- a/plugins/main/loopback/loopback.go
+++ b/plugins/main/loopback/loopback.go
@@ -1,3 +1,17 @@
+// Copyright 2016 CNI 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.
+
 package main
 
 import (
diff --git a/plugins/main/loopback/loopback_suite_test.go b/plugins/main/loopback/loopback_suite_test.go
index d2616055..36d646a2 100644
--- a/plugins/main/loopback/loopback_suite_test.go
+++ b/plugins/main/loopback/loopback_suite_test.go
@@ -1,3 +1,17 @@
+// Copyright 2016 CNI 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.
+
 package main_test
 
 import (
diff --git a/plugins/main/loopback/loopback_test.go b/plugins/main/loopback/loopback_test.go
index 9436e9a9..fbacc707 100644
--- a/plugins/main/loopback/loopback_test.go
+++ b/plugins/main/loopback/loopback_test.go
@@ -1,3 +1,17 @@
+// Copyright 2016 CNI 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.
+
 package main_test
 
 import (
diff --git a/test b/test
index a51a0e8f..c02b360b 100755
--- a/test
+++ b/test
@@ -65,4 +65,16 @@ if [ -n "${vetRes}" ]; then
 	exit 255
 fi
 
+echo "Checking license header..."
+licRes=$(
+       for file in $(find . -type f -iname '*.go' ! -path './vendor/*'); do
+               head -n1 "${file}" | grep -Eq "(Copyright|generated)" || echo -e "  ${file}"
+       done
+)
+if [ -n "${licRes}" ]; then
+       echo -e "license header checking failed:\n${licRes}"
+       exit 255
+fi
+
+
 echo "Success"