diff --git a/src/calibre/gui2/convert/metadata.ui b/src/calibre/gui2/convert/metadata.ui
index 91a920b88b..3fbe57b969 100644
--- a/src/calibre/gui2/convert/metadata.ui
+++ b/src/calibre/gui2/convert/metadata.ui
@@ -97,7 +97,6 @@
       </item>
      </layout>
      <zorder>opt_prefer_metadata_cover</zorder>
-     <zorder></zorder>
     </widget>
    </item>
    <item>