diff --git a/README.md b/README.md
index b6a50a5..0bfd67a 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@
 
 tar-stream is a streaming tar parser and generator and nothing else. It is streams2 and operates purely using streams which means you can easily extract/parse tarballs without ever hitting the file system.
 
+Note that you still need to gunzip your data if you have a `.tar.gz`. We recommend using [gunzip-maybe](https://github.com/mafintosh/gunzip-maybe) in conjunction with this.
+
 ```
 npm install tar-stream
 ```