diff --git a/lib/ui/text.dart b/lib/ui/text.dart
index be0465b048bf526d4fc5f25f2b4e392e3aaeb077..96555850619746d70bef450b9fae3c11149c8505 100644
--- a/lib/ui/text.dart
+++ b/lib/ui/text.dart
@@ -752,6 +752,7 @@ enum TextDirection {
 /// A rectangle enclosing a run of text.
 ///
 /// This is similar to [Rect] but includes an inherent [TextDirection].
+@pragma('vm:entry-point')
 class TextBox {
   /// Creates an object that describes a box containing text.
   const TextBox.fromLTRBD(