diff --git a/recipes/gildia_pl.recipe b/recipes/gildia_pl.recipe
index efb178a1de..def57203e4 100644
--- a/recipes/gildia_pl.recipe
+++ b/recipes/gildia_pl.recipe
@@ -1,4 +1,5 @@
 from calibre.web.feeds.news import BasicNewsRecipe
+import re
 
 class Gildia(BasicNewsRecipe):
     title          = u'Gildia.pl'
diff --git a/recipes/lwn_weekly.recipe b/recipes/lwn_weekly.recipe
index 92bad37991..95994aa97e 100644
--- a/recipes/lwn_weekly.recipe
+++ b/recipes/lwn_weekly.recipe
@@ -7,7 +7,6 @@ lwn.net
 '''
 
 from calibre.web.feeds.news import BasicNewsRecipe
-from calibre.ebooks.BeautifulSoup import BeautifulSoup
 import re
 import sys
 
diff --git a/src/calibre/library/catalogs/epub_mobi_builder.py b/src/calibre/library/catalogs/epub_mobi_builder.py
index fd3c81b589..6816d9a00b 100644
--- a/src/calibre/library/catalogs/epub_mobi_builder.py
+++ b/src/calibre/library/catalogs/epub_mobi_builder.py
@@ -649,6 +649,7 @@ class CatalogBuilder(object):
 
         cl_list = [None] * len(item_list)
         last_ordnum = 0
+        last_c = u''
 
         for idx, item in enumerate(item_list):
             if key: