diff --git a/src/Semi.Avalonia/Controls/TextBlock.axaml b/src/Semi.Avalonia/Controls/TextBlock.axaml
index 06ff10c..0579e89 100644
--- a/src/Semi.Avalonia/Controls/TextBlock.axaml
+++ b/src/Semi.Avalonia/Controls/TextBlock.axaml
@@ -1,7 +1,7 @@
 <ResourceDictionary xmlns="https://github.com/avaloniaui" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
     <Design.PreviewWith>
         <StackPanel Spacing="20">
-            <TextBlock Theme="{StaticResource TitleText}" />
+            <TextBlock Text="Test" Theme="{StaticResource TitleTextBlock}" />
         </StackPanel>
     </Design.PreviewWith>
     <ControlTheme x:Key="{x:Type TextBlock}" TargetType="TextBlock">