diff --git a/fe-app-podkop/src/validators/validateVlessUrl.ts b/fe-app-podkop/src/validators/validateVlessUrl.ts
index 23cebc9..6ac5b5a 100644
--- a/fe-app-podkop/src/validators/validateVlessUrl.ts
+++ b/fe-app-podkop/src/validators/validateVlessUrl.ts
@@ -96,6 +96,14 @@ export function validateVlessUrl(url: string): ValidationResult {
         };
     }
 
+    if (params.flow === 'xtls-rprx-vision-udp443') {
+      return {
+        valid: false,
+        message:
+          'Invalid VLESS URL: flow xtls-rprx-vision-udp443 does not supported',
+      };
+    }
+
     return { valid: true, message: _('Valid') };
   } catch (_e) {
     return { valid: false, message: _('Invalid VLESS URL: parsing failed') };
diff --git a/luci-app-podkop/htdocs/luci-static/resources/view/podkop/main.js b/luci-app-podkop/htdocs/luci-static/resources/view/podkop/main.js
index dcb1232..9628e2c 100644
--- a/luci-app-podkop/htdocs/luci-static/resources/view/podkop/main.js
+++ b/luci-app-podkop/htdocs/luci-static/resources/view/podkop/main.js
@@ -305,6 +305,12 @@ function validateVlessUrl(url) {
           message: "Invalid VLESS URL: missing fp for reality"
         };
     }
+    if (params.flow === "xtls-rprx-vision-udp443") {
+      return {
+        valid: false,
+        message: "Invalid VLESS URL: flow xtls-rprx-vision-udp443 does not supported"
+      };
+    }
     return { valid: true, message: _("Valid") };
   } catch (_e) {
     return { valid: false, message: _("Invalid VLESS URL: parsing failed") };