Fix typo (#42922)
diff --git a/packages/flutter/lib/src/material/tab_controller.dart b/packages/flutter/lib/src/material/tab_controller.dart
index 9da5688..f04d6f7 100644
--- a/packages/flutter/lib/src/material/tab_controller.dart
+++ b/packages/flutter/lib/src/material/tab_controller.dart
@@ -11,7 +11,7 @@
/// Coordinates tab selection between a [TabBar] and a [TabBarView].
///
/// The [index] property is the index of the selected tab and the [animation]
-/// represents the current scroll positions of the tab bar and the tar bar view.
+/// represents the current scroll positions of the tab bar and the tab bar view.
/// The selected tab's index can be changed with [animateTo].
///
/// A stateful widget that builds a [TabBar] or a [TabBarView] can create
