diff --git a/lib/draggable_scrollbar.dart b/lib/draggable_scrollbar.dart
index 9573486..876f24e 100755
--- a/lib/draggable_scrollbar.dart
+++ b/lib/draggable_scrollbar.dart
@@ -352,6 +352,7 @@ class _DraggableScrollbarState extends State<DraggableScrollbar>
   void dispose() {
     _thumbAnimationController.dispose();
     _fadeoutTimer?.cancel();
+    _labelAnimationController.dispose();
     super.dispose();
   }