diff --git a/assets/diagnostics/mtr-backend.py b/assets/diagnostics/mtr-backend.py
index 353a431..5c763b2 100644
--- a/assets/diagnostics/mtr-backend.py
+++ b/assets/diagnostics/mtr-backend.py
@@ -187,7 +187,7 @@ class Handler(BaseHTTPRequestHandler):
 
     def do_POST(self):
         parsed = urlparse(self.path)
-        if parsed.path not in ("/mtr", "/api/mtr"):
+        if not (parsed.path in ("/mtr", "/api/mtr") or parsed.path.endswith("/api/mtr")):
             self._send_json(404, {"error": "not found"})
             return
 
diff --git a/x-ui-latest.sh b/x-ui-latest.sh
index 098f831..ebb7c66 100644
--- a/x-ui-latest.sh
+++ b/x-ui-latest.sh
@@ -462,7 +462,7 @@ server {
     location ^~ ${diag_path}api/mtr {
         limit_req  zone=diag_api burst=2 nodelay;
         limit_conn per_ip 2;
-        proxy_pass         http://127.0.0.1:${mtr_backend_port};
+        proxy_pass         http://127.0.0.1:${mtr_backend_port}/api/mtr;
         proxy_http_version 1.1;
         proxy_set_header   X-Real-IP       \$remote_addr;
         proxy_set_header   X-Forwarded-For \$proxy_add_x_forwarded_for;