diff --git a/backend/package.json b/backend/package.json
index 661175c..57d07b1 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "sub-store",
-  "version": "2.19.26",
+  "version": "2.19.27",
   "description": "Advanced Subscription Manager for QX, Loon, Surge, Stash and Shadowrocket.",
   "main": "src/main.js",
   "scripts": {
diff --git a/backend/src/core/proxy-utils/producers/sing-box.js b/backend/src/core/proxy-utils/producers/sing-box.js
index 7620535..160cf92 100644
--- a/backend/src/core/proxy-utils/producers/sing-box.js
+++ b/backend/src/core/proxy-utils/producers/sing-box.js
@@ -31,6 +31,21 @@ const smuxParser = (smux, proxy) => {
     if (smux['min-streams'])
         proxy.multiplex.min_streams = parseInt(`${smux['min-streams']}`, 10);
     if (smux.padding) proxy.multiplex.padding = true;
+    if (smux['brutal-opts']?.up || smux['brutal-opts']?.down) {
+        proxy.multiplex.brutal = {
+            enabled: true,
+        };
+        if (smux['brutal-opts']?.up)
+            proxy.multiplex.brutal.up_mbps = parseInt(
+                `${smux['brutal-opts']?.up}`,
+                10,
+            );
+        if (smux['brutal-opts']?.down)
+            proxy.multiplex.brutal.down_mbps = parseInt(
+                `${smux['brutal-opts']?.down}`,
+                10,
+            );
+    }
 };
 
 const wsParser = (proxy, parsedProxy) => {