diff --git a/hgdemandimport/py3token.py b/hgdemandimport/py3token.py
--- a/hgdemandimport/py3token.py
+++ b/hgdemandimport/py3token.py
@@ -56,9 +56,12 @@
 # Changes from official Python source code:
 #
 # * _main() and related functionality removed.
+# * absolute_import added.
 
 """Token constants (from "token.h")."""
 
+from __future__ import absolute_import
+
 __all__ = ['tok_name', 'ISTERMINAL', 'ISNONTERMINAL', 'ISEOF']
 
 #  This file is automatically generated; please don't muck it up!
diff --git a/hgdemandimport/py3tokenize.py b/hgdemandimport/py3tokenize.py
--- a/hgdemandimport/py3tokenize.py
+++ b/hgdemandimport/py3tokenize.py
@@ -59,6 +59,10 @@
 # * Removed generate_tokens().
 # * Removed open().
 # * Removed module docstring.
+# * Adjusted for relative imports.
+# * absolute_import added.
+
+from __future__ import absolute_import
 
 __author__ = 'Ka-Ping Yee <ping@lfw.org>'
 __credits__ = ('GvR, ESR, Tim Peters, Thomas Wouters, Fred Drake, '
@@ -69,15 +73,15 @@
 from itertools import chain
 import itertools as _itertools
 import re
-from token import *
+from .py3token import *
 
 cookie_re = re.compile(r'^[ \t\f]*#.*?coding[:=][ \t]*([-\w.]+)', re.ASCII)
 blank_re = re.compile(br'^[ \t\f]*(?:[#\r\n]|$)', re.ASCII)
 
-import token
-__all__ = token.__all__ + ["tokenize", "detect_encoding",
-                           "untokenize", "TokenInfo"]
-del token
+from . import py3token
+__all__ = py3token.__all__ + ["tokenize", "detect_encoding",
+                              "untokenize", "TokenInfo"]
+del py3token
 
 EXACT_TOKEN_TYPES = {
     '(':   LPAR,
diff --git a/tests/test-check-module-imports.t b/tests/test-check-module-imports.t
--- a/tests/test-check-module-imports.t
+++ b/tests/test-check-module-imports.t
@@ -25,6 +25,7 @@
   > -X contrib/win32/hgwebdir_wsgi.py \
   > -X doc/gendoc.py \
   > -X doc/hgmanpage.py \
+  > -X hgdemandimport/py3tokenize.py \
   > -X i18n/posplit \
   > -X mercurial/thirdparty \
   > -X tests/hypothesishelpers.py \