diff --git a/src/Ursa.Themes.Semi/Controls/UrsaWindow.axaml b/src/Ursa.Themes.Semi/Controls/UrsaWindow.axaml
index bece089..8f04853 100644
--- a/src/Ursa.Themes.Semi/Controls/UrsaWindow.axaml
+++ b/src/Ursa.Themes.Semi/Controls/UrsaWindow.axaml
@@ -11,7 +11,22 @@
         <Setter Property="FontFamily" Value="{DynamicResource DefaultFontFamily}" />
         <Setter Property="ExtendClientAreaTitleBarHeightHint" Value="-1" />
         <Setter Property="ExtendClientAreaToDecorationsHint" Value="True" />
-        <Setter Property="SystemDecorations" Value="Full" />
+        <Setter Property="SystemDecorations">
+            <OnPlatform>
+                <OnPlatform.Default>
+                    <SystemDecorations>Full</SystemDecorations>
+                </OnPlatform.Default>
+                <OnPlatform.macOS>
+                    <SystemDecorations>Full</SystemDecorations>
+                </OnPlatform.macOS>
+                <OnPlatform.Linux>
+                    <SystemDecorations>None</SystemDecorations>
+                </OnPlatform.Linux>
+                <OnPlatform.Windows>
+                    <SystemDecorations>Full</SystemDecorations>
+                </OnPlatform.Windows>
+            </OnPlatform>
+        </Setter> 
         <Setter Property="Template">
             <ControlTemplate TargetType="u:UrsaWindow">
                 <Panel>
diff --git a/src/Ursa/Controls/TitleBar/TitleBar.cs b/src/Ursa/Controls/TitleBar/TitleBar.cs
index 326c339..a4319b9 100644
--- a/src/Ursa/Controls/TitleBar/TitleBar.cs
+++ b/src/Ursa/Controls/TitleBar/TitleBar.cs
@@ -51,7 +51,10 @@ public class TitleBar: ContentControl
     {
         if (e.GetCurrentPoint(this).Properties.IsLeftButtonPressed)
         {
-            _visualRoot?.BeginMoveDrag(e);
+            if (e.ClickCount < 2) 
+            {
+                _visualRoot?.BeginMoveDrag(e);
+            }
         }
     }