diff --git a/sdk/lib/widgets/basic.dart b/sdk/lib/widgets/basic.dart
index ed24024783be5c5908bd6290fcd5fe1e9bcb6475..c330ea170425d5ba0e39998b4e5f392250b924a0 100644
--- a/sdk/lib/widgets/basic.dart
+++ b/sdk/lib/widgets/basic.dart
@@ -429,4 +429,9 @@ class WidgetToRenderBoxAdapter extends RenderObjectWrapper {
     // definition, it is the transition out of the Widget world.
   }
 
+  void remove() {
+    parent.detachChildRoot(this);
+    super.remove();
+  }
+
 }