diff --git a/benchmarks_test.go b/benchmarks_test.go
index ebe9804..a2c62ba 100644
--- a/benchmarks_test.go
+++ b/benchmarks_test.go
@@ -1,3 +1,7 @@
+// Copyright 2017 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 import (
diff --git a/binding/default_validator.go b/binding/default_validator.go
index 760728b..19885f1 100644
--- a/binding/default_validator.go
+++ b/binding/default_validator.go
@@ -1,3 +1,7 @@
+// Copyright 2017 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package binding
 
 import (
diff --git a/context_appengine.go b/context_appengine.go
index d9cb22f..38c189a 100644
--- a/context_appengine.go
+++ b/context_appengine.go
@@ -1,5 +1,9 @@
 // +build appengine
 
+// Copyright 2017 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 func init() {
diff --git a/fs.go b/fs.go
index 320fea6..1264582 100644
--- a/fs.go
+++ b/fs.go
@@ -1,3 +1,7 @@
+// Copyright 2017 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 import (
diff --git a/gin_integration_test.go b/gin_integration_test.go
index 2674a61..0a6351d 100644
--- a/gin_integration_test.go
+++ b/gin_integration_test.go
@@ -1,3 +1,7 @@
+// Copyright 2017 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 import (
diff --git a/test_helpers.go b/test_helpers.go
index 5bb3fa7..e7dd55f 100644
--- a/test_helpers.go
+++ b/test_helpers.go
@@ -1,3 +1,7 @@
+// Copyright 2017 Manu Martinez-Almeida.  All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package gin
 
 import (