diff --git a/README.md b/README.md
index 108b440..acee28f 100644
--- a/README.md
+++ b/README.md
@@ -5,11 +5,11 @@ controls. It has been tested with up to 4 streams but should in principle
 be able to handle an arbitrary number for streams.
 
 The player uses a simple json format to bundle several streams along with
-some metadata. The format is exemplified in `package.json`. Such a bundle
+some metadata. The format is exemplified in `packagedef.json`. Such a bundle
 is usually referred to as a "presentation".
 
 There is also support for playlists, which are also specified in json
-format. That format is exemplified in `list.json`
+format. That format is exemplified in `listdef.json`
 
 ## Online playback