diff --git a/src/lib.rs b/src/lib.rs
index 0691b49..3fc4d1d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,3 +1,17 @@
+//  Copyright 2014-2015 Corey Farwell
+//
+//  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.
+
 // Many of my decisions were based off the following document
 // https://web.archive.org/web/20140727185616/http://algs4.cs.princeton.edu/33balanced/