diff --git a/openmptcprouter/files/etc/init.d/openmptcprouter-vps b/openmptcprouter/files/etc/init.d/openmptcprouter-vps
index 353760cc7..73ac3a3d3 100755
--- a/openmptcprouter/files/etc/init.d/openmptcprouter-vps
+++ b/openmptcprouter/files/etc/init.d/openmptcprouter-vps
@@ -1238,6 +1238,8 @@ _config_service() {
 		[ -z "$(_set_mptcp_vps)" ] && error=1
 		[ -z "$(_set_vpn_vps)" ] && error=1
 	fi
+	[ "$(uci -q get shadowsocks-libev.sss0.key)" = "" ] && error=1
+	
 	#_set_pihole
 	[ -n "$wanips" ] && _set_wan_ip
 	_set_lan_ip