diff --git a/packages/flutter/lib/src/widgets/banner.dart b/packages/flutter/lib/src/widgets/banner.dart
index f8dac863b669..d4f6e7e6f2e7 100644
--- a/packages/flutter/lib/src/widgets/banner.dart
+++ b/packages/flutter/lib/src/widgets/banner.dart
@@ -326,6 +326,7 @@ class Banner extends StatelessWidget {
 
 /// Displays a [Banner] saying "DEBUG" when running in debug mode.
 /// [MaterialApp] builds one of these by default.
+///
 /// Does nothing in release mode.
 class CheckedModeBanner extends StatelessWidget {
   /// Creates a const debug mode banner.