diff --git a/mace/third_party/flatbuffers/build_defs.bzl b/mace/third_party/flatbuffers/build_defs.bzl
index ae8d7feebe781c896a408dbc7119a4f0820d0519..7152cc75e1b9227a8e45a0765f9f9c2bcafa7a43 100644
--- a/mace/third_party/flatbuffers/build_defs.bzl
+++ b/mace/third_party/flatbuffers/build_defs.bzl
@@ -1,3 +1,4 @@
+# This file is copied from TensorFlow
 # Description:
 #   BUILD rules for generating flatbuffer files.
 
@@ -95,7 +96,6 @@ def flatbuffer_library_public(name,
         visibility=reflection_visiblity
     )
 
-
 def flatbuffer_cc_library(name, srcs, srcs_filegroup_name="",
                           out_prefix="", includes=[], include_paths=[],
                           flatc_args=DEFAULT_FLATC_ARGS,
diff --git a/mace/third_party/flatbuffers/flatbuffers.BUILD b/mace/third_party/flatbuffers/flatbuffers.BUILD
index 824c97be60e7ef148a363b964ed330ba3c5fcb0c..377df35fc2cbdd93aad946fab4acb4b64b028cba 100644
--- a/mace/third_party/flatbuffers/flatbuffers.BUILD
+++ b/mace/third_party/flatbuffers/flatbuffers.BUILD
@@ -1,3 +1,5 @@
+# This build file is copied from TensorFlow
+
 package(
     default_visibility = ["//visibility:public"],
 )