diff --git a/src/Semi.Avalonia/Controls/Tooltip.axaml b/src/Semi.Avalonia/Controls/Tooltip.axaml
index a0809d5..d884026 100644
--- a/src/Semi.Avalonia/Controls/Tooltip.axaml
+++ b/src/Semi.Avalonia/Controls/Tooltip.axaml
@@ -18,7 +18,6 @@
             <ControlTemplate TargetType="ToolTip">
                 <Border
                     Name="PART_LayoutRoot"
-                    Margin="0,-1,0,0"
                     Padding="{TemplateBinding Padding}"
                     Background="{TemplateBinding Background}"
                     BorderBrush="{TemplateBinding BorderBrush}"