diff --git a/mptcp/files/etc/init.d/mptcp b/mptcp/files/etc/init.d/mptcp
index 9d7ed0473..22b9eb018 100755
--- a/mptcp/files/etc/init.d/mptcp
+++ b/mptcp/files/etc/init.d/mptcp
@@ -93,7 +93,7 @@ interface_multipath_settings() {
 load_interfaces() {
 	config_get ifname "$1" ifname
 	config_get multipath "$1" multipath "off"
-	[ "$multipath" != "off" ] && interface=" ${ifname} ${interfaces}"
+	[ "$multipath" != "off" ] && interfaces=" ${ifname} ${interfaces}"
 }
 
 start_service() {