diff --git a/README b/README
index ad6676e..4a8eb64 100644
--- a/README
+++ b/README
@@ -42,8 +42,9 @@ If you are wanting to run the Alien demo (the installer is an .exe but you
 can just use unzip to extract the files from the .exe), add -DALIEN_DEMO to
 the CFLAGS line (the one that's uncommented) in the Makefile. Rename all game 
 files lowercase. Be sure to install SDL 1.2 (http://www.libsdl.org) with
-OpenGL support, nasm 0.98, and the latest OpenAL CVS (http://www.openal.org).
-AvP requires a 3D card with OpenGL support to work.
+OpenGL support, nasm 0.98, PhysicsFS 0.1.4 (http://icculus.org/physfs/),
+and the latest OpenAL CVS (http://www.openal.org).  AvP requires a 3D card 
+with OpenGL support.
 
 Create the MPConfig and User_Profiles directories if they do not exist. 
 (Note: Windows profiles probably do not work in Linux and vice versa)