diff --git a/luci-app-ssr-plus/luasrc/model/cbi/shadowsocksr/client-config.lua b/luci-app-ssr-plus/luasrc/model/cbi/shadowsocksr/client-config.lua
index 67988f9e9..3bf73380d 100644
--- a/luci-app-ssr-plus/luasrc/model/cbi/shadowsocksr/client-config.lua
+++ b/luci-app-ssr-plus/luasrc/model/cbi/shadowsocksr/client-config.lua
@@ -618,6 +618,7 @@ o = s:option(ListValue, "transport", translate("Transport"))
 o:value("tcp", "TCP")
 o:value("kcp", "mKCP")
 o:value("ws", "WebSocket")
+o:value("httpupgrade", "HTTPUpgrade")
 o:value("h2", "HTTP/2")
 o:value("quic", "QUIC")
 o:value("grpc", "gRPC")