diff --git a/dump_gcov.cc b/dump_gcov.cc
index beefb02..2af7bbf 100644
--- a/dump_gcov.cc
+++ b/dump_gcov.cc
@@ -1,3 +1,17 @@
+// Copyright 2014 Google Inc. 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.
+
 // Read the gcda file and dump the information.
 
 #include <map>
diff --git a/profile_diff.cc b/profile_diff.cc
index dfcfd5a..3c87a17 100644
--- a/profile_diff.cc
+++ b/profile_diff.cc
@@ -1,3 +1,17 @@
+// Copyright 2014 Google Inc. 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.
+
 // Diff two .afdo files.
 
 #include <map>
diff --git a/profile_merger.cc b/profile_merger.cc
index fad92c3..a79c4c9 100644
--- a/profile_merger.cc
+++ b/profile_merger.cc
@@ -1,3 +1,17 @@
+// Copyright 2014 Google Inc. 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.
+
 // Merge the .afdo files.
 
 #include <map>
diff --git a/profile_reader.cc b/profile_reader.cc
index b04c11b..812d809 100644
--- a/profile_reader.cc
+++ b/profile_reader.cc
@@ -1,3 +1,17 @@
+// Copyright 2014 Google Inc. 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 "base/common.h"
 #include "addr2line.h"
 #include "gcov.h"
diff --git a/profile_reader.h b/profile_reader.h
index 6f55cf6..ad84220 100644
--- a/profile_reader.h
+++ b/profile_reader.h
@@ -1,3 +1,17 @@
+// Copyright 2014 Google Inc. 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.
+
 // Read profile from the .afdo file. The format of .afdo file is in
 // profile_writer.h.
 
diff --git a/profile_update.cc b/profile_update.cc
index d96d19c..b068da8 100644
--- a/profile_update.cc
+++ b/profile_update.cc
@@ -1,3 +1,17 @@
+// Copyright 2014 Google Inc. 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.
+
 // Updates the AutoFDO profile using the module info and debug info stored
 // in the new binary.