diff --git a/pkg/agent/controller/packetsampling/packetsampling_controller.go b/pkg/agent/controller/packetsampling/packetsampling_controller.go
index bba2bf44a81..174752dac92 100644
--- a/pkg/agent/controller/packetsampling/packetsampling_controller.go
+++ b/pkg/agent/controller/packetsampling/packetsampling_controller.go
@@ -1,3 +1,17 @@
+// Copyright 2024 Antrea 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 packetsampling
 
 import (
diff --git a/pkg/controller/packetsampling/controller.go b/pkg/controller/packetsampling/controller.go
index e9bcf02f884..bfb9b84da0f 100644
--- a/pkg/controller/packetsampling/controller.go
+++ b/pkg/controller/packetsampling/controller.go
@@ -1,3 +1,17 @@
+// Copyright 2024 Antrea 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 packetsampling
 
 import (