diff -Naur mage-0.4.22/usr/lib/mage/mgroupadd mage-0.4.22-mcore/usr/lib/mage/mgroupadd
--- mage-0.4.22/usr/lib/mage/mgroupadd	2010-12-27 17:15:05.000000000 +0100
+++ mage-0.4.22-mcore/usr/lib/mage/mgroupadd	2010-12-27 17:18:32.000000000 +0100
@@ -39,7 +39,25 @@
 
 GROUP_TO_ADD="$1"
 
+fix_group_opts()
+{
+	local i
+	local FIXED_GROUP_OPTS
+
+	for i in $*
+	do
+		case $1 in
+			-s) FIXED_GROUP_OPTS+=" -S" ;;
+			*) FIXED_GROUP_OPTS+=" $1" ;;
+		esac
+		shift
+	done
+
+	echo "${FIXED_GROUP_OPTS}"
+}
+
+
 # if above entries are empty the user/group does not exist
 echo "     Adding group '${GROUP_TO_ADD}' ..."
-addgroup ${GROUP_OPTS} "${GROUP_TO_ADD}"
+addgroup $(fix_group_opts ${GROUP_OPTS}) "${GROUP_TO_ADD}"
 
diff -Naur mage-0.4.22/usr/lib/mage/museradd mage-0.4.22-mcore/usr/lib/mage/museradd
--- mage-0.4.22/usr/lib/mage/museradd	2010-12-27 17:15:05.000000000 +0100
+++ mage-0.4.22-mcore/usr/lib/mage/museradd	2010-12-27 17:15:51.000000000 +0100
@@ -51,6 +51,7 @@
 			-g) shift; FIXED_USER_OPTS+=" -G $1" ;;
 			-G) shift; shift; continue;; # will be parsed through fix_group_opts
 			-u) shift; [[ $1 -lt 100 ]] && FIXED_USER_OPTS+=" -S" ;;
+			-s) FIXED_USER_OPTS+=" -S" ;;
 			*) FIXED_USER_OPTS+=" $1" ;;
 		esac
 		shift