diff --git a/mptcp/files/etc/init.d/mptcp b/mptcp/files/etc/init.d/mptcp
index d2b6c9209..6a1545155 100755
--- a/mptcp/files/etc/init.d/mptcp
+++ b/mptcp/files/etc/init.d/mptcp
@@ -138,7 +138,7 @@ interface_multipath_settings() {
 		fi
 		ip -6 rule del table 6$id > /dev/null 2>&1
 		ip -6 route flush 6$id > /dev/null 2>&1
-		if [-n "$ip6addr" ] && [ -n "$gateway6" ] && [ -n "$network6" ]; then
+		if [ -n "$ip6addr" ] && [ -n "$gateway6" ] && [ -n "$network6" ]; then
 			ip -6 rule add from $ip6addr table 6$id
 			ip -6 route replace $network6/$netmask6 dev $iface scope link table 6$id
 			ip -6 route replace default via $gateway6 dev $iface table 6$id