diff --git a/README b/README
index 86a85dc..d613f37 100644
--- a/README
+++ b/README
@@ -1,10 +1,10 @@
-oxframe - extract frames from ogg videos
+oxframe - extract frames from ogg or webm videos
 
 dependencies:
     liboggz     git clone git://git.xiph.org/liboggz.git
     liboggplay  git clone git://git.xiph.org/liboggplay.git
     libtheora   apt-get install libtheora-dev
-
+    libvpx      git clone git://review.webmproject.org/libvpx.git
 
 
 
diff --git a/src/oxframe.c b/src/oxframe.c
index c975cbc..8a17a55 100644
--- a/src/oxframe.c
+++ b/src/oxframe.c
@@ -1,6 +1,6 @@
 /* -*- tab-width:2;c-file-style:"cc-mode"; -*- */
 /*
- * oxframe.c -- dump frame from a theora file
+ * oxframe.c -- dump frame from an Ogg or WebM file
  * Copyright (C) 20010 <j@mailb.org>
  *
  * This program is free software: you can redistribute it and/or modify