diff --git a/Correlator/Views/MainWindow.xaml.cs b/Correlator/Views/MainWindow.xaml.cs
index 4ea04c4..56a0f22 100644
--- a/Correlator/Views/MainWindow.xaml.cs
+++ b/Correlator/Views/MainWindow.xaml.cs
@@ -34,6 +34,7 @@
             //十字准线
             var crosshair = ScottplotView.Plot.AddCrosshair(0, 0);
             crosshair.IsVisible = false;
+            ScottplotView.Refresh();
 
             ShowCrossLineCheckBox.Checked += delegate
             {