diff --git a/packages/notion-types/src/block.ts b/packages/notion-types/src/block.ts
index 56d0ea80e..1edbbeddf 100644
--- a/packages/notion-types/src/block.ts
+++ b/packages/notion-types/src/block.ts
@@ -108,6 +108,7 @@ export interface BaseBlock {
   created_time: number
   last_edited_time: number
   alive: boolean
+  has_children: boolean
   created_by_table: string
   created_by_id: ID
   last_edited_by_table: string