diff --git a/luci-app-passwall/root/usr/share/passwall/app.sh b/luci-app-passwall/root/usr/share/passwall/app.sh
index 2f14ea2..2c32061 100755
--- a/luci-app-passwall/root/usr/share/passwall/app.sh
+++ b/luci-app-passwall/root/usr/share/passwall/app.sh
@@ -1236,13 +1236,17 @@ socks_node_switch() {
 	local flag new_node
 	eval_set_val $@
 	[ -n "$flag" ] && [ -n "$new_node" ] && {
+		local prefix pf filename
 		# 结束 SS 插件进程
-		local pf; for pf in "$TMP_PATH"/{,HTTP_}SOCKS_"$flag"_plugin.pid; do
+		for prefix in "" "HTTP_"; do
+			pf="$TMP_PATH/${prefix}SOCKS_${flag}_plugin.pid"
 			[ -s "$pf" ] && kill -9 "$(head -n1 "$pf")" >/dev/null 2>&1
 		done
 
 		pgrep -af "$TMP_BIN_PATH" | awk -v P1="${flag}" 'BEGIN{IGNORECASE=1}$0~P1 && !/acl\/|acl_/{print $1}' | xargs kill -9 >/dev/null 2>&1
-		rm -rf "$TMP_PATH"/{,HTTP_,HTTP2}SOCKS_"$flag"*
+		for prefix in "" "HTTP_" "HTTP2"; do
+			rm -rf "$TMP_PATH/${prefix}SOCKS_${flag}"*
+		done
 
 		for filename in $(ls ${TMP_SCRIPT_FUNC_PATH}); do
 			cmd=$(cat ${TMP_SCRIPT_FUNC_PATH}/${filename})