diff --git a/src/MaaWpfGui/ViewModels/UserControl/Settings/ConnectSettingsUserControlModel.cs b/src/MaaWpfGui/ViewModels/UserControl/Settings/ConnectSettingsUserControlModel.cs
index 74bd3c9132..b292147587 100644
--- a/src/MaaWpfGui/ViewModels/UserControl/Settings/ConnectSettingsUserControlModel.cs
+++ b/src/MaaWpfGui/ViewModels/UserControl/Settings/ConnectSettingsUserControlModel.cs
@@ -518,6 +518,11 @@ public class ConnectSettingsUserControlModel : PropertyChangedBase
                     return;
                 }
 
+                if (value)
+                {
+                    Index = GetEmulatorIndex(SettingsViewModel.ConnectSettings.ConnectAddress).ToString();
+                }
+
                 SetAndNotify(ref _manualSetIndex, value);
                 Instances.AsstProxy.Connected = false;
                 ConfigurationHelper.SetValue(ConfigurationKeys.LdPlayerManualSetIndex, value.ToString());