diff --git a/quartz/plugins/transformers/lastmod.ts b/quartz/plugins/transformers/lastmod.ts
index fd80871be..4d8805086 100644
--- a/quartz/plugins/transformers/lastmod.ts
+++ b/quartz/plugins/transformers/lastmod.ts
@@ -63,7 +63,7 @@ export const CreatedModifiedDate: QuartzTransformerPlugin<Partial<Options>> = (u
                 }
 
                 try {
-                  modified ||= await repo.getFileLatestModifiedDateAsync(file.data.filePath!)
+                  modified ||= await repo.getFileLatestModifiedDateAsync(fullFp!)
                 } catch {
                   console.log(
                     chalk.yellow(