diff --git a/lib/ui/pointer.dart b/lib/ui/pointer.dart
index fd5f3a13e25aa..b9a32cb56c1b5 100644
--- a/lib/ui/pointer.dart
+++ b/lib/ui/pointer.dart
@@ -50,6 +50,9 @@ enum PointerDeviceKind {
   /// A pointer device with a stylus that has been inverted.
   invertedStylus,
 
+  /// A pointer device that uses a pointer signal.
+  signal,
+
   /// An unknown pointer device.
   unknown
 }