diff --git a/src/Avalonia.Controls/Grid/Grid.cs b/src/Avalonia.Controls/Grid/Grid.cs
index 5def043136..449b92ac52 100644
--- a/src/Avalonia.Controls/Grid/Grid.cs
+++ b/src/Avalonia.Controls/Grid/Grid.cs
@@ -218,7 +218,7 @@ namespace Avalonia.Controls
         public static readonly StyledProperty<bool> ShowGridLinesProperty =
             AvaloniaProperty.Register<Grid, bool>(
                 nameof(ShowGridLines),
-                defaultValue: true);
+                defaultValue: false);
 
         /// <summary>
         /// ShowGridLines property.