diff --git a/src/configs/common/TLS.cpp b/src/configs/common/TLS.cpp
index 75fddeb..d0e90b9 100644
--- a/src/configs/common/TLS.cpp
+++ b/src/configs/common/TLS.cpp
@@ -334,9 +334,9 @@ namespace Configs {
         if (fragment) object["fragment"] = fragment;
         if (!fragment_fallback_delay.isEmpty()) object["fragment_fallback_delay"] = fragment_fallback_delay;
         if (record_fragment) object["record_fragment"] = record_fragment;
-        if (ech->enabled) object["ech"] = ech->Build().object;
-        if (utls->enabled) object["utls"] = utls->Build().object;
-        if (reality->enabled) object["reality"] = reality->Build().object;
+        if (auto obj = ech->Build().object;!obj.isEmpty()) object["ech"] = obj;
+        if (auto obj = utls->Build().object;!obj.isEmpty()) object["utls"] = obj;
+        if (auto obj = reality->Build().object;!obj.isEmpty()) object["reality"] = obj;
         return {object, ""};
     }
 }