diff --git a/backend/package.json b/backend/package.json
index c9ec004ea..41f8744ac 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "sub-store",
-  "version": "2.14.73",
+  "version": "2.14.74",
   "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/surge.js b/backend/src/core/proxy-utils/producers/surge.js
index 127a27e2e..918255dad 100644
--- a/backend/src/core/proxy-utils/producers/surge.js
+++ b/backend/src/core/proxy-utils/producers/surge.js
@@ -320,8 +320,11 @@ function tuic(proxy) {
     );
 
     // tfo
-    result.appendIfPresent(`,tfo=${proxy['fast-open']}`, 'fast-open');
-    result.appendIfPresent(`,tfo=${proxy.tfo}`, 'tfo');
+    if (isPresent(proxy, 'tfo')) {
+        result.append(`,tfo=${proxy['tfo']}`);
+    } else if (isPresent(proxy, 'fast-open')) {
+        result.append(`,tfo=${proxy['fast-open']}`);
+    }
 
     // test-url
     result.appendIfPresent(`,test-url=${proxy['test-url']}`, 'test-url');
@@ -399,8 +402,11 @@ function hysteria2(proxy) {
     );
 
     // tfo
-    result.appendIfPresent(`,tfo=${proxy['fast-open']}`, 'fast-open');
-    result.appendIfPresent(`,tfo=${proxy.tfo}`, 'tfo');
+    if (isPresent(proxy, 'tfo')) {
+        result.append(`,tfo=${proxy['tfo']}`);
+    } else if (isPresent(proxy, 'fast-open')) {
+        result.append(`,tfo=${proxy['fast-open']}`);
+    }
 
     // test-url
     result.appendIfPresent(`,test-url=${proxy['test-url']}`, 'test-url');