diff --git a/server/objects/mediaTypes/Book.js b/server/objects/mediaTypes/Book.js
index bc34bbb8..321d0170 100644
--- a/server/objects/mediaTypes/Book.js
+++ b/server/objects/mediaTypes/Book.js
@@ -252,7 +252,7 @@ class Book {
     if (metadataAbs) {
       Logger.debug(`[Book] Found metadata.abs file for "${this.metadata.title}"`)
       const metadataText = await readTextFile(metadataAbs.metadata.path)
-      const abmetadataUpdates = abmetadataGenerator.parseAndCheckForUpdates(metadataText, this.metadata, 'book')
+      const abmetadataUpdates = abmetadataGenerator.parseAndCheckForUpdates(metadataText, this, 'book')
       if (abmetadataUpdates && Object.keys(abmetadataUpdates).length) {
         Logger.debug(`[Book] "${this.metadata.title}" changes found in metadata.abs file`, abmetadataUpdates)
         metadataUpdatePayload = {
@@ -489,4 +489,4 @@ class Book {
     return this.metadata.authorName
   }
 }
-module.exports = Book
\ No newline at end of file
+module.exports = Book