diff --git a/scsh/scgame/scgame.scm b/scsh/scgame/scgame.scm
index f3f8524..97c99c9 100644
--- a/scsh/scgame/scgame.scm
+++ b/scsh/scgame/scgame.scm
@@ -1,4 +1,4 @@
-;;; scgame.scm - a scheme game library
+;;; scgame.scm - a scheme game library (needs a scheme48 with X11 support)
 ;;;
 ;;; Copyright (c) 2011-2012 Johan Ceuppens
 ;;;