diff --git a/Ink Canvas/Windows/SeewoStyleTimerWindow.xaml.cs b/Ink Canvas/Windows/SeewoStyleTimerWindow.xaml.cs
index 895fbe3e..e08e57f7 100644
--- a/Ink Canvas/Windows/SeewoStyleTimerWindow.xaml.cs	
+++ b/Ink Canvas/Windows/SeewoStyleTimerWindow.xaml.cs	
@@ -586,7 +586,7 @@ namespace Ink_Canvas
             if (indicator != null)
             {
                 // 设置左侧圆角
-                indicator.CornerRadius = new CornerRadius(7, 0, 0, 7);
+                indicator.CornerRadius = new CornerRadius(7.5, 0, 0, 7.5);
                 var animation = new System.Windows.Media.Animation.ThicknessAnimation(
                     new Thickness(0, 0, 0, 0),
                     TimeSpan.FromMilliseconds(200));
@@ -620,7 +620,7 @@ namespace Ink_Canvas
             if (indicator != null)
             {
                 // 设置右侧圆角
-                indicator.CornerRadius = new CornerRadius(0, 7, 7, 0);
+                indicator.CornerRadius = new CornerRadius(0, 7.5, 7.5, 0);
                 var animation = new System.Windows.Media.Animation.ThicknessAnimation(
                     new Thickness(118, 0, 0, 0),
                     TimeSpan.FromMilliseconds(200));