diff --git a/packages/example/src/todo/Todo.tsx b/packages/example/src/todo/Todo.tsx
index 3aca33b..f364ed1 100644
--- a/packages/example/src/todo/Todo.tsx
+++ b/packages/example/src/todo/Todo.tsx
@@ -97,7 +97,7 @@ export class Todo extends Component.makeUntraced(function* Todo(props: TodoProps
                             SubscriptionRef.updateEffect(state.ref, todos => Effect.Do.pipe(
                                 Effect.bind("todo", () => ref),
                                 Effect.bind("index", () => Chunk.findFirstIndex(todos, v => v.id === props.id)),
-                                Effect.bind("previous", () => Chunk.get(todos, index - 1)),
+                                Effect.bind("previous", ({ index }) => Chunk.get(todos, index - 1)),
                                 Effect.andThen(({ todo, index, previous }) => index > 0
                                     ? todos.pipe(
                                         Chunk.replace(index, previous),
@@ -117,7 +117,7 @@ export class Todo extends Component.makeUntraced(function* Todo(props: TodoProps
                             SubscriptionRef.updateEffect(state.ref, todos => Effect.Do.pipe(
                                 Effect.bind("todo", () => ref),
                                 Effect.bind("index", () => Chunk.findFirstIndex(todos, v => v.id === props.id)),
-                                Effect.bind("next", () => Chunk.get(todos, index + 1)),
+                                Effect.bind("next", ({ index }) => Chunk.get(todos, index + 1)),
                                 Effect.andThen(({ todo, index, next }) => index < Chunk.size(todos) - 1
                                     ? todos.pipe(
                                         Chunk.replace(index, next),