diff --git a/apps/readest-app/src/services/appService.ts b/apps/readest-app/src/services/appService.ts
index 5238a935..0141c3e1 100644
--- a/apps/readest-app/src/services/appService.ts
+++ b/apps/readest-app/src/services/appService.ts
@@ -307,7 +307,7 @@ export abstract class BaseAppService implements AppService {
         book.coverDownloadedAt = null;
       }
     }
-    if (deleteAction === 'cloud' || deleteAction === 'both') {
+    if ((deleteAction === 'cloud' || deleteAction === 'both') && book.uploadedAt) {
       const fps = [getRemoteBookFilename(book), getCoverFilename(book)];
       for (const fp of fps) {
         console.log('Deleting uploaded file:', fp);
diff --git a/packages/foliate-js b/packages/foliate-js
index afa38c19..b5231c9f 160000
--- a/packages/foliate-js
+++ b/packages/foliate-js
@@ -1 +1 @@
-Subproject commit afa38c1976b2052240b98f45053639b103f70b66
+Subproject commit b5231c9fab7c5afda67eaf04e27be075758978f8