diff --git a/src/Semi.Avalonia/Controls/AutoCompleteBox.axaml b/src/Semi.Avalonia/Controls/AutoCompleteBox.axaml
index 05df1ea..3f094c0 100644
--- a/src/Semi.Avalonia/Controls/AutoCompleteBox.axaml
+++ b/src/Semi.Avalonia/Controls/AutoCompleteBox.axaml
@@ -6,7 +6,7 @@
         </StackPanel>
     </Design.PreviewWith>
     <ControlTheme x:Key="{x:Type AutoCompleteBox}" TargetType="AutoCompleteBox">
-        <Setter Property="AutoCompleteBox.MaxDropDownHeight" Value="600" />
+        <Setter Property="AutoCompleteBox.MaxDropDownHeight" Value="{DynamicResource AutoCompleteMaxDropdownHeight}" />
         <Setter Property="Template">
             <ControlTemplate TargetType="AutoCompleteBox">
                 <Panel>
diff --git a/src/Semi.Avalonia/Themes/Dark/AutoCompleteBox.axaml b/src/Semi.Avalonia/Themes/Dark/AutoCompleteBox.axaml
index 194a05e..f958f57 100644
--- a/src/Semi.Avalonia/Themes/Dark/AutoCompleteBox.axaml
+++ b/src/Semi.Avalonia/Themes/Dark/AutoCompleteBox.axaml
@@ -6,4 +6,8 @@
     <Thickness x:Key="AutoCompleteBoxPopupMargin">4</Thickness>
     <CornerRadius x:Key="AutoCompleteBoxPopupCornerRadius">6</CornerRadius>
     <CornerRadius x:Key="AutoCompleteBoxCornerRadius">3</CornerRadius>
+    <x:Double x:Key="AutoCompleteBoxDefaultHeight">30</x:Double>
+    <x:Double x:Key="AutoCompleteBoxSmallHeight">22</x:Double>
+    <x:Double x:Key="AutoCompleteBoxLargeHeight">38</x:Double>
+    <x:Double x:Key="AutoCompleteMaxDropdownHeight">600</x:Double>
 </ResourceDictionary>
diff --git a/src/Semi.Avalonia/Themes/Light/AutoCompleteBox.axaml b/src/Semi.Avalonia/Themes/Light/AutoCompleteBox.axaml
index dc0fb9e..f44ef66 100644
--- a/src/Semi.Avalonia/Themes/Light/AutoCompleteBox.axaml
+++ b/src/Semi.Avalonia/Themes/Light/AutoCompleteBox.axaml
@@ -9,4 +9,5 @@
     <x:Double x:Key="AutoCompleteBoxDefaultHeight">30</x:Double>
     <x:Double x:Key="AutoCompleteBoxSmallHeight">22</x:Double>
     <x:Double x:Key="AutoCompleteBoxLargeHeight">38</x:Double>
+    <x:Double x:Key="AutoCompleteMaxDropdownHeight">600</x:Double>
 </ResourceDictionary>