diff --git a/v2rayN/v2rayN/Views/OptionSettingWindow.xaml.cs b/v2rayN/v2rayN/Views/OptionSettingWindow.xaml.cs
index 4e78eec0..4066ffc5 100644
--- a/v2rayN/v2rayN/Views/OptionSettingWindow.xaml.cs
+++ b/v2rayN/v2rayN/Views/OptionSettingWindow.xaml.cs
@@ -1,4 +1,4 @@
-using ReactiveUI;
+using ReactiveUI;
 using System.Globalization;
 using System.IO;
 using System.Reactive.Disposables;
@@ -145,6 +145,7 @@ namespace v2rayN.Views
                 this.Bind(ViewModel, vm => vm.EnableDragDropSort, v => v.togEnableDragDropSort.IsChecked).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.DoubleClick2Activate, v => v.togDoubleClick2Activate.IsChecked).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.AutoUpdateInterval, v => v.txtautoUpdateInterval.Text).DisposeWith(disposables);
+                this.Bind(ViewModel, vm => vm.AutoUpdateCoreInterval, v => v.txtautoUpdateCoreInterval.Text).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.TrayMenuServersLimit, v => v.txttrayMenuServersLimit.Text).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.CurrentFontFamily, v => v.cmbcurrentFontFamily.Text).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.SpeedTestTimeout, v => v.cmbSpeedTestTimeout.Text).DisposeWith(disposables);
@@ -258,4 +259,4 @@ namespace v2rayN.Views
             ViewModel.destOverride = clbdestOverride.SelectedItems.Cast<string>().ToList();
         }
     }
-}
\ No newline at end of file
+}