diff --git a/src/Avalonia.Controls/TextBox.cs b/src/Avalonia.Controls/TextBox.cs
index 7b4bb469d0..6e26d1b1ff 100644
--- a/src/Avalonia.Controls/TextBox.cs
+++ b/src/Avalonia.Controls/TextBox.cs
@@ -318,7 +318,7 @@ namespace Avalonia.Controls
 
         private void DecideCaretVisibility()
         {
-            _presenter.ShowCaret();
+            _presenter?.ShowCaret();
         }
 
         protected override void OnLostFocus(RoutedEventArgs e)