diff --git a/iso/bin/setup-helper b/iso/bin/setup-helper
index 3cd5948..b7d7523 100755
--- a/iso/bin/setup-helper
+++ b/iso/bin/setup-helper
@@ -99,6 +99,10 @@ if [ `is_installed xorg` ]; then
     inject_packages xorg-dri2proto
 fi
 
+if [ `is_installed xulrunner` ]; then
+    inject_packages alsa-lib
+fi
+
 # module-init-tools, ticket #437
 if [ -f $ROOT/etc/modprobe.conf ]; then
     mkdir -p $ROOT/etc/modprobe.d/