diff --git a/quartz/plugins/transformers/markdown.ts b/quartz/plugins/transformers/markdown.ts
index 2dbc68534..c07b15ba3 100644
--- a/quartz/plugins/transformers/markdown.ts
+++ b/quartz/plugins/transformers/markdown.ts
@@ -340,3 +340,10 @@ export const RoamFlavoredMarkdown: QuartzTransformerPlugin<Partial<RoamOptions>
     },
   }
 }
+
+declare module "vfile" {
+  interface DataMap {
+    blocks: Record<string, Element>
+    htmlAst: HtmlRoot
+  }
+}