diff --git a/README.md b/README.md
index 4e1970422f..775e93f55e 100644
--- a/README.md
+++ b/README.md
@@ -18,12 +18,14 @@ The source code for the Elite Force game, cgame, and ui code is not included as
 
 ## Compiling
 
-Lilium Voyager is compiled using `make USE_CODEC_MP3=1`. For details see [building ioquake3](http://wiki.ioquake3.org/Building_ioquake3).
-
-The MP3 support library (libmad) is not included in the source tree (yet) so easier to just build without it. Though this prevents music and some sounds from playing.
+Lilium Voyager is compiled using `make`. For details see [building ioquake3](http://wiki.ioquake3.org/Building_ioquake3).
 
 The Visual Studio project files are not supported.
 
+Additional make variables not in ioquake3:
+* `USE_CODEC_MP3=1` - Enable MP3 support using libmad (defaults to 1).
+* `USE_INTERNAL_MP3=1` - Use libmad in the local source tree (defaults to 1).
+
 
 ## Discussion