diff --git a/src/glob_wrapper.rs b/src/glob_wrapper.rs
index 101f172..7f0454c 100644
--- a/src/glob_wrapper.rs
+++ b/src/glob_wrapper.rs
@@ -1,4 +1,7 @@
-/* Copyright (c) 2018 Garrett Berg, vitiral@gmail.com
+/* Much of the documentation in this file was taken from the `glob` crate.
+ *
+ * Copyright (c) 2018 Garrett Berg, vitiral@gmail.com
+ * Copyright (c) 2014 The Rust Project Developers.
  *
  * Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
  * http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or