diff --git a/packages/flutter/lib/src/widgets/editable_text.dart b/packages/flutter/lib/src/widgets/editable_text.dart
index fa2f816900..9feb45c3ce 100644
--- a/packages/flutter/lib/src/widgets/editable_text.dart
+++ b/packages/flutter/lib/src/widgets/editable_text.dart
@@ -14,6 +14,7 @@ import 'package:flutter/gestures.dart' show DragStartBehavior;
 import 'automatic_keep_alive.dart';
 import 'basic.dart';
 import 'binding.dart';
+import 'debug.dart';
 import 'focus_manager.dart';
 import 'focus_scope.dart';
 import 'framework.dart';
@@ -1185,6 +1186,7 @@ class EditableTextState extends State<EditableText> with AutomaticKeepAliveClien
 
   @override
   Widget build(BuildContext context) {
+    assert(debugCheckHasMediaQuery(context));
     FocusScope.of(context).reparentIfNeeded(widget.focusNode);
     super.build(context); // See AutomaticKeepAliveClientMixin.