diff --git a/xray-core/files/etc/init.d/xray b/xray-core/files/etc/init.d/xray
index f3c0566c3..5d6b49d37 100755
--- a/xray-core/files/etc/init.d/xray
+++ b/xray-core/files/etc/init.d/xray
@@ -1375,7 +1375,7 @@ add_inbound_setting() {
 			json_add_boolean "tcpFastOpen" "$ss_sockopt_tcp_fast_open"
 		if version_over_5_4; then
 			test -n "$ss_sockopt_mptcp" && \
-				json_add_boolean "mptcp" "$ss_sockopt_mptcp"
+				json_add_boolean "tcpMptcp" "$ss_sockopt_mptcp"
 		fi
 		test -n "$ss_sockopt_tproxy" && \
 			json_add_string "tproxy" "$ss_sockopt_tproxy"
diff --git a/xray-core/files/etc/uci-defaults/3010-omr-xray b/xray-core/files/etc/uci-defaults/3010-omr-xray
index 7897ae2cf..69cce605e 100644
--- a/xray-core/files/etc/uci-defaults/3010-omr-xray
+++ b/xray-core/files/etc/uci-defaults/3010-omr-xray
@@ -67,6 +67,7 @@ if [ -z "$(uci -q get xray.main)" ]; then
 		set xray.omrout.ss_tls_key_file='/etc/luci-uploads/client.key'
 		set xray.omrout.s_shadowsocks_port='65252'
 		set xray.omrout.mux_concurrency='8'
+		set xray.omrout.ss_sockopt_mptcp='1'
 		set xray.omr=inbound
 		set xray.omr.tag='omrtunnel'
 		set xray.omr.listen='0.0.0.0'
@@ -199,4 +200,11 @@ if [ "$(uci -q get xray.omrout.s_socks_port)" = "" ]; then
 	EOF
 fi
 
+if [ "$(uci -q get xray.omrout.ss_sockopt_mptcp)" = "" ]; then
+	uci -q batch <<-EOF >/dev/null
+		set xray.omrout.ss_sockopt_mptcp='1'
+		commit xray
+	EOF
+fi
+
 exit 0
\ No newline at end of file