diff --git a/README.md b/README.md
index c58572a..0f36843 100644
--- a/README.md
+++ b/README.md
@@ -179,4 +179,5 @@ Original implementation (in C):
 License
 -------
 
-MIT
+- MIT - all files, except `/lib/zlib` folder
+- ZLIB - `/lib/zlib` content