diff --git a/lib/notion/getAllPosts.js b/lib/notion/getAllPosts.js
index e3d83594..8cd43e34 100644
--- a/lib/notion/getAllPosts.js
+++ b/lib/notion/getAllPosts.js
@@ -29,6 +29,7 @@ export async function getAllPosts ({ notionPageData, from, includePage = false }
   for (let i = 0; i < pageIds.length; i++) {
     const id = pageIds[i]
     const properties = (await getPageProperties(id, pageBlock, schema)) || null
+    properties.slug = properties.slug ?? properties.id
     properties.createdTime = new Date(pageBlock[id].value?.created_time).toString()
     properties.lastEditedTime = new Date(pageBlock[id].value?.last_edited_time).toString()
     properties.fullWidth = pageBlock[id].value?.format?.page_full_width ?? false