diff --git a/mace/kernels/opencl/reduce_mean_opencl.cc b/mace/kernels/opencl/reduce_mean_opencl.cc
index 7930cc6047459ea8f7841c70eef43dd349385495..cd27ad1cdbcba320cf1902dd9894b1e96b092a05 100644
--- a/mace/kernels/opencl/reduce_mean_opencl.cc
+++ b/mace/kernels/opencl/reduce_mean_opencl.cc
@@ -1,6 +1,16 @@
+// Copyright 2018 Xiaomi, Inc.  All rights reserved.
 //
-// Copyright (c) 2017 XiaoMi All rights reserved.
+// 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.
 
 #include "mace/kernels/reduce_mean.h"
 #include "mace/core/runtime/opencl/cl2_header.h"
diff --git a/mace/kernels/reduce_mean.h b/mace/kernels/reduce_mean.h
index 81fc3d9c786b42b92b6a2b4392ad40d62245f22c..65dc67d91c07e3b6f663f67f1135417f2accbc59 100644
--- a/mace/kernels/reduce_mean.h
+++ b/mace/kernels/reduce_mean.h
@@ -1,6 +1,16 @@
+// Copyright 2018 Xiaomi, Inc.  All rights reserved.
 //
-// Copyright (c) 2017 XiaoMi All rights reserved.
+// 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 MACE_KERNELS_REDUCE_MEAN_H_
 #define MACE_KERNELS_REDUCE_MEAN_H_
diff --git a/mace/ops/reduce_mean.cc b/mace/ops/reduce_mean.cc
index d940077ca4310e7563a2f850fbdf273d2a2edd12..4f181a776f5b5a589d657527c5124e5a1d524d26 100644
--- a/mace/ops/reduce_mean.cc
+++ b/mace/ops/reduce_mean.cc
@@ -1,6 +1,16 @@
+// Copyright 2018 Xiaomi, Inc.  All rights reserved.
 //
-// Copyright (c) 2017 XiaoMi All rights reserved.
+// 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.
 
 #include "mace/ops/reduce_mean.h"
 
diff --git a/mace/ops/reduce_mean.h b/mace/ops/reduce_mean.h
index d099f04ae66c40bca5a1ea372fa114e4212f0fa4..7cdaff86fbd6714417678c27d36357a3d9cde4e3 100644
--- a/mace/ops/reduce_mean.h
+++ b/mace/ops/reduce_mean.h
@@ -1,6 +1,16 @@
+// Copyright 2018 Xiaomi, Inc.  All rights reserved.
 //
-// Copyright (c) 2017 XiaoMi All rights reserved.
+// 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 MACE_OPS_REDUCE_MEAN_H_
 #define MACE_OPS_REDUCE_MEAN_H_
diff --git a/mace/ops/reduce_mean_benchmark.cc b/mace/ops/reduce_mean_benchmark.cc
index 272df97d7c2eeeb96e5bdcd9f8ff41d0e7495246..21bf06f5b24507b207052eed72c831deff0b053f 100644
--- a/mace/ops/reduce_mean_benchmark.cc
+++ b/mace/ops/reduce_mean_benchmark.cc
@@ -1,6 +1,16 @@
+// Copyright 2018 Xiaomi, Inc.  All rights reserved.
 //
-// Copyright (c) 2017 XiaoMi All rights reserved.
+// 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.
 
 #include "mace/core/operator.h"
 #include "mace/core/runtime/opencl/opencl_runtime.h"
diff --git a/mace/ops/reduce_mean_test.cc b/mace/ops/reduce_mean_test.cc
index 06686f4b61a3e38059c3fb56c1ed00355b569a3f..4f5a029e836aee7671256c790850f7c6044e11a1 100644
--- a/mace/ops/reduce_mean_test.cc
+++ b/mace/ops/reduce_mean_test.cc
@@ -1,6 +1,16 @@
+// Copyright 2018 Xiaomi, Inc.  All rights reserved.
 //
-// Copyright (c) 2017 XiaoMi All rights reserved.
+// 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.
 
 #include "mace/core/operator.h"
 #include "mace/ops/ops_test_util.h"