diff --git a/db/ConfigBuilder.cpp b/db/ConfigBuilder.cpp
index ad37b82..0fc16df 100644
--- a/db/ConfigBuilder.cpp
+++ b/db/ConfigBuilder.cpp
@@ -651,6 +651,7 @@ namespace NekoGui {
                     auto muxObj = QJsonObject{
                         {"enabled", true},
                         {"protocol", dataStore->mux_protocol},
+                        {"padding", dataStore->mux_padding},
                         {"max_streams", dataStore->mux_concurrency},
                     };
                     outbound["multiplex"] = muxObj;
diff --git a/main/NekoGui.cpp b/main/NekoGui.cpp
index 5ebb536..939b187 100644
--- a/main/NekoGui.cpp
+++ b/main/NekoGui.cpp
@@ -237,6 +237,7 @@ namespace NekoGui {
         _add(new configItem("log_level", &log_level, itemType::string));
         _add(new configItem("mux_protocol", &mux_protocol, itemType::string));
         _add(new configItem("mux_concurrency", &mux_concurrency, itemType::integer));
+        _add(new configItem("mux_padding", &mux_padding, itemType::boolean));
         _add(new configItem("mux_default_on", &mux_default_on, itemType::boolean));
         _add(new configItem("traffic_loop_interval", &traffic_loop_interval, itemType::integer));
         _add(new configItem("test_concurrent", &test_concurrent, itemType::integer));
diff --git a/main/NekoGui_DataStore.hpp b/main/NekoGui_DataStore.hpp
index 13dfa1b..3f1a40f 100644
--- a/main/NekoGui_DataStore.hpp
+++ b/main/NekoGui_DataStore.hpp
@@ -102,6 +102,7 @@ namespace NekoGui {
         bool connection_statistics = false;
         int current_group = 0; // group id
         QString mux_protocol = "";
+        bool mux_padding = false;
         int mux_concurrency = 8;
         bool mux_default_on = false;
         QString theme = "0";
diff --git a/ui/dialog_basic_settings.cpp b/ui/dialog_basic_settings.cpp
index df7b9fa..b5b6189 100644
--- a/ui/dialog_basic_settings.cpp
+++ b/ui/dialog_basic_settings.cpp
@@ -66,6 +66,7 @@ DialogBasicSettings::DialogBasicSettings(QWidget *parent)
     } else {
         ui->log_level->addItems({"debug", "info", "warning", "none"});
         ui->mux_protocol->hide();
+        ui->mux_padding->hide();
     }
 
     refresh_auth();
@@ -240,6 +241,7 @@ DialogBasicSettings::DialogBasicSettings(QWidget *parent)
     // Mux
     D_LOAD_INT(mux_concurrency)
     D_LOAD_COMBO_STRING(mux_protocol)
+    D_LOAD_BOOL(mux_padding)
     D_LOAD_BOOL(mux_default_on)
 
     // Security
@@ -309,6 +311,7 @@ void DialogBasicSettings::accept() {
     // Mux
     D_SAVE_INT(mux_concurrency)
     D_SAVE_COMBO_STRING(mux_protocol)
+    D_SAVE_BOOL(mux_padding)
     D_SAVE_BOOL(mux_default_on)
 
     // Security
diff --git a/ui/dialog_basic_settings.ui b/ui/dialog_basic_settings.ui
index 69223cf..19f36b6 100644
--- a/ui/dialog_basic_settings.ui
+++ b/ui/dialog_basic_settings.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>600</width>
-    <height>400</height>
+    <width>650</width>
+    <height>500</height>
    </rect>
   </property>
   <property name="sizePolicy">
@@ -33,7 +33,7 @@
    <item row="2" column="3">
     <widget class="QTabWidget" name="tabWidget">
      <property name="currentIndex">
-      <number>0</number>
+      <number>3</number>
      </property>
      <widget class="QWidget" name="tab_1">
       <attribute name="title">
@@ -603,6 +603,13 @@
                <item>
                 <widget class="QLineEdit" name="mux_concurrency"/>
                </item>
+               <item>
+                <widget class="QCheckBox" name="mux_padding">
+                 <property name="text">
+                  <string>padding</string>
+                 </property>
+                </widget>
+               </item>
                <item>
                 <widget class="QCheckBox" name="mux_default_on">
                  <property name="text">
@@ -694,8 +701,8 @@
            <rect>
             <x>0</x>
             <y>0</y>
-            <width>568</width>
-            <height>297</height>
+            <width>515</width>
+            <height>315</height>
            </rect>
           </property>
           <layout class="QVBoxLayout" name="verticalLayout_6">