diff --git a/classes/prepare_metadata.py b/classes/prepare_metadata.py
index 9518074c7..63fdf5521 100644
--- a/classes/prepare_metadata.py
+++ b/classes/prepare_metadata.py
@@ -369,6 +369,7 @@ def __init__(self, option, keep_vars=False):
         self.text_length = option.get('text_length', self.maximum_length)
         self.directory = option.get(
             'directory')
+        self.preview = option.get('preview')
         if not keep_vars:
             for key, value in self:
                 print