diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/TabControl.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/TabControl.xaml
index 654f47d0..1f6cc8c0 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/TabControl.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/TabControl.xaml
@@ -48,7 +48,7 @@
                             <ColumnDefinition Width="Auto"/>
                         </Grid.ColumnDefinitions>
                         <Border Grid.ColumnSpan="3" BorderThickness="{TemplateBinding BorderThickness}" x:Name="mainBorder" BorderBrush="{TemplateBinding BorderBrush}" Background="{TemplateBinding Background}" Margin="0">
-                            <Border Margin="0,0,0,-1" x:Name="innerBorder" Background="{DynamicResource RegionBrush}" Opacity="1"/>
+                            <Border Margin="0,0,0,-1" x:Name="innerBorder" Background="{DynamicResource RegionBrush}" Opacity="0"/>
                         </Border>
                         <Path Grid.Column="0" Margin="10,0,0,0" x:Name="PathMain" Width="{TemplateBinding controls:IconElement.Width}" Height="{TemplateBinding controls:IconElement.Height}" Fill="{TemplateBinding Foreground}" SnapsToDevicePixels="True" Stretch="Uniform" Data="{TemplateBinding controls:IconElement.Geometry}">
                             <Path.Style>
@@ -348,4 +348,4 @@
         <Setter Property="controls:TitleElement.Foreground" Value="{DynamicResource TextIconBrush}"/>
     </Style>
 
-</ResourceDictionary>
\ No newline at end of file
+</ResourceDictionary>