diff --git a/packages/flutter/lib/src/cupertino/nav_bar.dart b/packages/flutter/lib/src/cupertino/nav_bar.dart
index 4ad073c520..8226b28880 100644
--- a/packages/flutter/lib/src/cupertino/nav_bar.dart
+++ b/packages/flutter/lib/src/cupertino/nav_bar.dart
@@ -46,7 +46,7 @@ enum NavigationBarBottomMode {
 const double _kNavBarPersistentHeight = kMinInteractiveDimensionCupertino;
 
 /// Size increase from expanding the navigation bar into an iOS-11-style large title
-/// form in a [CustomScrollView].
+/// configuration in a [CustomScrollView].
 const double _kNavBarLargeTitleHeightExtension = 52.0;
 
 /// Number of logical pixels scrolled down before the title text is transferred