diff --git a/src/calibre/ebooks/metadata/opf2.py b/src/calibre/ebooks/metadata/opf2.py
index 1b1ffeee3e..2cd6df487c 100644
--- a/src/calibre/ebooks/metadata/opf2.py
+++ b/src/calibre/ebooks/metadata/opf2.py
@@ -621,7 +621,7 @@ class OPF(object):  # {{{
                 import traceback
                 traceback.print_exc()
                 continue
-            self._user_metadata_ = temp.get_all_user_metadata(True)
+        self._user_metadata_ = temp.get_all_user_metadata(True)
 
     def to_book_metadata(self):
         ans = MetaInformation(self)