diff --git a/scripts/clash.sh b/scripts/clash.sh
index 49465b4..922d3fe 100644
--- a/scripts/clash.sh
+++ b/scripts/clash.sh
@@ -93,7 +93,7 @@ getconfig(){
 setconfig(){
 	#参数1代表变量名，参数2代表变量值,参数3即文件路径
 	[ -z "$3" ] && configpath=$clashdir/mark || configpath=$3
-	[ -n "$(grep ${1}= $configpath)" ] && sed -i "s#${1}=\(.*\)#${1}=${2}#g" $configpath || echo "${1}=${2}" >> $configpath
+	[ -n "$(grep -E "^${1}=" $configpath)" ] && sed -i "s#^${1}=\(.*\)#${1}=${2}#g" $configpath || echo "${1}=${2}" >> $configpath
 }
 #启动相关
 errornum(){