diff --git a/paddle/capi/arguments.h b/paddle/capi/arguments.h
index 3f3594b282b6b198d0b36a79d9ef1d03d5d5a5d2..1bb6516ea0235a605a9f6ddcee80232d1b86fe20 100644
--- a/paddle/capi/arguments.h
+++ b/paddle/capi/arguments.h
@@ -1,3 +1,17 @@
+/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
+
+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. */
+
 #ifndef __PADDLE_CAPI_ARGUMENTS_H__
 #define __PADDLE_CAPI_ARGUMENTS_H__
 
diff --git a/paddle/capi/gradient_machine.h b/paddle/capi/gradient_machine.h
index f3cfd67c220cdd1b84ca403516b0539cc48f1639..36c1a2b1b4b91a3157f5a178d1e3148b7b825594 100644
--- a/paddle/capi/gradient_machine.h
+++ b/paddle/capi/gradient_machine.h
@@ -1,3 +1,17 @@
+/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
+
+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. */
+
 #ifndef __PADDLE_CAPI_GRADIENT_MACHINE_H__
 #define __PADDLE_CAPI_GRADIENT_MACHINE_H__
 #include "arguments.h"
diff --git a/paddle/capi/main.h b/paddle/capi/main.h
index 814c8cce244444e0f9d61e0801ee675fbebede67..893ebcbd58dd24cf835fb2005865c94c9ba2a810 100644
--- a/paddle/capi/main.h
+++ b/paddle/capi/main.h
@@ -1,3 +1,17 @@
+/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
+
+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. */
+
 #ifndef __PADDLE_CAPI_MAIN_H__
 #define __PADDLE_CAPI_MAIN_H__
 #include "config.h"