diff --git a/lib/draggable_scrollbar.dart b/lib/draggable_scrollbar.dart
index 93e3a69..3014741 100755
--- a/lib/draggable_scrollbar.dart
+++ b/lib/draggable_scrollbar.dart
@@ -357,7 +357,7 @@ class _DraggableScrollbarState extends State<DraggableScrollbar>
   }
 
   double get barMaxScrollExtent =>
-      context.size!.height - widget.heightScrollThumb;
+      context.size!.height - widget.heightScrollThumb - (widget.padding == null ? 0.0 : widget.padding!.vertical);
 
   double get barMinScrollExtent => 0.0;