diff --git a/README.md b/README.md
index f74916c..4c22dcb 100644
--- a/README.md
+++ b/README.md
@@ -17,3 +17,6 @@ Use [CocoaPods](https://guides.cocoapods.org/using/getting-started.html)!
 ```ruby
 pod "opentracing"
 ```
+## License
+
+The gem is available as open source under the terms of the [MIT License](http://opensource.org/licenses/MIT).