diff --git a/pkgs/games/steam/chrootenv.nix b/pkgs/games/steam/chrootenv.nix
index b4019f86e301..0a444cf61b44 100644
--- a/pkgs/games/steam/chrootenv.nix
+++ b/pkgs/games/steam/chrootenv.nix
@@ -59,6 +59,8 @@ buildFHSUserEnv {
       pkgs.pulseaudio
 
       pkgs.flashplayer
+
+      pkgs.gst_all_1.gst-plugins-ugly # "Audiosurf 2" needs this
     ];
 
   extraBuildCommandsMulti = ''