diff --git a/packages/scrollable_positioned_list/example/lib/main.dart b/packages/scrollable_positioned_list/example/lib/main.dart
index 8e41e2bc..87e12f51 100644
--- a/packages/scrollable_positioned_list/example/lib/main.dart
+++ b/packages/scrollable_positioned_list/example/lib/main.dart
@@ -11,7 +11,7 @@ const minItemHeight = 20.0;
 const maxItemHeight = 150.0;
 const scrollDuration = Duration(seconds: 2);
 
-const randomMax = 1 << 32;
+const randomMax = 1 << 32 - 1;
 
 void main() {
   runApp(ScrollablePositionedListExample());