diff --git a/recipes/stamgasten.recipe b/recipes/stamgasten.recipe
index 9a637eb7d6..3c7b9cfab8 100644
--- a/recipes/stamgasten.recipe
+++ b/recipes/stamgasten.recipe
@@ -1,3 +1,5 @@
+from calibre.web.feeds.news import BasicNewsRecipe
+
 class AdvancedUserRecipe1347706704(BasicNewsRecipe):
     title          = u'Stamgasten'
     __author__  = u'DrMerry'
diff --git a/src/calibre/library/catalogs/epub_mobi_builder.py b/src/calibre/library/catalogs/epub_mobi_builder.py
index 04e64b9695..41c42b3705 100644
--- a/src/calibre/library/catalogs/epub_mobi_builder.py
+++ b/src/calibre/library/catalogs/epub_mobi_builder.py
@@ -989,8 +989,8 @@ class CatalogBuilder(object):
                     file_fmts.add(fmt)
 
                 bookmark_extension = None
-                if file_fmts.intersection(han_formats):
-                    book_extension = list(file_fmts.intersection(han_formats))[0]
+                if file_fmts.intersection(tan_formats):
+                    book_extension = list(file_fmts.intersection(tan_formats))[0]
                     bookmark_extension = 'han'
                 elif file_fmts.intersection(mbp_formats):
                     book_extension = list(file_fmts.intersection(mbp_formats))[0]