diff --git a/lib/netstd/Thrift/Transport/Layered/TLayeredTransport.cs b/lib/netstd/Thrift/Transport/Layered/TLayeredTransport.cs
index 2137ae4..4d39b39 100644
--- a/lib/netstd/Thrift/Transport/Layered/TLayeredTransport.cs
+++ b/lib/netstd/Thrift/Transport/Layered/TLayeredTransport.cs
@@ -1,3 +1,20 @@
+// Licensed to the Apache Software Foundation(ASF) under one
+// or more contributor license agreements.See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.The ASF licenses this file
+// to you 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.
+
 using System;
 using System.Collections.Generic;
 using System.Text;
diff --git a/lib/netstd/Thrift/Transport/TEndpointTransport.cs b/lib/netstd/Thrift/Transport/TEndpointTransport.cs
index fa2ac6b..51a2a17 100644
--- a/lib/netstd/Thrift/Transport/TEndpointTransport.cs
+++ b/lib/netstd/Thrift/Transport/TEndpointTransport.cs
@@ -1,3 +1,20 @@
+// Licensed to the Apache Software Foundation(ASF) under one
+// or more contributor license agreements.See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.The ASF licenses this file
+// to you 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.
+
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;