diff --git a/src/calibre/ebooks/metadata/author_mapper.py b/src/calibre/ebooks/metadata/author_mapper.py
index d8c1c9693d..d4e10d118b 100644
--- a/src/calibre/ebooks/metadata/author_mapper.py
+++ b/src/calibre/ebooks/metadata/author_mapper.py
@@ -6,7 +6,6 @@ from __future__ import absolute_import, division, print_function, unicode_litera
 
 import re
 from collections import deque
-from polyglot.builtins import map
 
 from calibre.utils.icu import capitalize, lower, upper
 
diff --git a/src/calibre/ebooks/metadata/sources/base.py b/src/calibre/ebooks/metadata/sources/base.py
index 408b939e25..43413e89cd 100644
--- a/src/calibre/ebooks/metadata/sources/base.py
+++ b/src/calibre/ebooks/metadata/sources/base.py
@@ -8,7 +8,6 @@ __copyright__ = '2011, Kovid Goyal <kovid@kovidgoyal.net>'
 __docformat__ = 'restructuredtext en'
 
 import re, threading
-from polyglot.builtins import map
 
 from calibre import browser, random_user_agent
 from calibre.customize import Plugin
diff --git a/src/calibre/ebooks/metadata/sources/search_engines.py b/src/calibre/ebooks/metadata/sources/search_engines.py
index 09a011dd8f..a9509c9054 100644
--- a/src/calibre/ebooks/metadata/sources/search_engines.py
+++ b/src/calibre/ebooks/metadata/sources/search_engines.py
@@ -8,7 +8,6 @@ import json
 import re
 import time
 from collections import defaultdict, namedtuple
-from polyglot.builtins import map
 from urllib import quote_plus, urlencode
 from urlparse import parse_qs