diff --git a/luci-app-passwall/root/usr/share/passwall/helper_smartdns_add.lua b/luci-app-passwall/root/usr/share/passwall/helper_smartdns_add.lua
index c07a185fd..be5f385a8 100644
--- a/luci-app-passwall/root/usr/share/passwall/helper_smartdns_add.lua
+++ b/luci-app-passwall/root/usr/share/passwall/helper_smartdns_add.lua
@@ -163,7 +163,7 @@ end
 local force_https_soa = uci:get(appname, "@global[0]", "force_https_soa") or 1
 local proxy_server_name = "passwall-proxy-server"
 config_lines = {
-	tonumber(force_https_soa) == 1 and "force-qtype-SOA 65" or "force-qtype-SOA -65",
+	tonumber(force_https_soa) == 1 and "force-qtype-SOA 65" or "force-qtype-SOA -,65",
 	"server 114.114.114.114 -bootstrap-dns",
 	DNS_MODE == "socks" and string.format("proxy-server socks5://%s -name %s", REMOTE_PROXY_SERVER, proxy_server_name) or nil
 }