diff --git a/rocksdb-sys/src/test.rs b/rocksdb-sys/src/test.rs
index 6d3aa79..568e7a5 100644
--- a/rocksdb-sys/src/test.rs
+++ b/rocksdb-sys/src/test.rs
@@ -1,3 +1,4 @@
+//
 // Copyright 2014 Tyler Neely
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
diff --git a/rocksdb-sys/tests/ffi.rs b/rocksdb-sys/tests/ffi.rs
index 36730a8..9f757e0 100644
--- a/rocksdb-sys/tests/ffi.rs
+++ b/rocksdb-sys/tests/ffi.rs
@@ -1,3 +1,19 @@
+//
+// Copyright 2016 Alex Regueiro
+//
+// 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.
+//
+
 // This code is based on <https://github.com/facebook/rocksdb/blob/master/db/c_test.c>, revision a10e8a056d569acf6a52045124e6414ad33bdfcd.
 
 #![allow(non_snake_case, non_upper_case_globals, unused_mut, unused_unsafe, unused_variables)]