diff --git a/web/assets/js/model/xray.js b/web/assets/js/model/xray.js
index 3548ceee..3a8998ef 100644
--- a/web/assets/js/model/xray.js
+++ b/web/assets/js/model/xray.js
@@ -840,8 +840,8 @@ class Sniffing extends XrayCommonClass {
         return new Sniffing(
             !!json.enabled,
             destOverride,
-            this.metadataOnly,
-            this.routeOnly,
+            json.metadataOnly,
+            json.routeOnly,
         );
     }
 }