diff --git a/src/gempub.lisp b/src/gempub.lisp
index 8bd70c9..69bc83e 100644
--- a/src/gempub.lisp
+++ b/src/gempub.lisp
@@ -77,7 +77,7 @@
       (when (find +metadata-entry-name entries :test #'String=)
         (when-let ((metadata-raw (os-utils:unzip-single-file zip-file
                                                              +metadata-entry-name)))
-          (parse 'metadata metadata-raw))))))
+          (parse 'gempub-metadata metadata-raw))))))
 
 (defun save-metadata (zip-file)
   (when-let ((metadata (extract-metadata zip-file)))