diff --git a/shadowsocks-libev/files/shadowsocks-libev.init b/shadowsocks-libev/files/shadowsocks-libev.init
index 8cfd999a2..da25e37f3 100644
--- a/shadowsocks-libev/files/shadowsocks-libev.init
+++ b/shadowsocks-libev/files/shadowsocks-libev.init
@@ -332,7 +332,7 @@ rules_exist() {
 
 rules_up() {
 	rules_exist && return 0
-	[ "$(ps w | grep ss- | grep -v grep)" = "" ] && return 0
+	[ "$(ps w | grep ss-rules | grep -v grep)" = "" ] && return 0
 	logger -t "Shadowsocks" "Rules UP"
 	config_load shadowsocks-libev
 	for cfgtype in ss_redir; do