diff --git a/tools/catalyst-auto-amd64-stage4.conf b/tools/catalyst-auto-amd64-stage4.conf
new file mode 100644
index 00000000..73410465
--- /dev/null
+++ b/tools/catalyst-auto-amd64-stage4.conf
@@ -0,0 +1,24 @@
+# This is the config file for the catalyst-auto script. It should be pretty
+# self-explanatory.
+
+B=`readlink -f $0`
+BASECONF=${B/-daily}
+if [ ! -e $BASECONF ]; then
+	echo "Could not find base config from $B" 1>&2
+	exit 1
+fi
+source ${BASECONF}
+for s in $SETS ; do
+	var=SET_${s}_SPECS
+	val=${!var}
+	newval=
+	for spec in $val ; do
+		case $spec in
+			*stage4*) newval="${newval} $spec" ;;
+		esac
+	done
+	eval "export $var='${newval}'"
+done
+printenv |grep SET
+
+# vim:ft=sh: