diff --git a/tests/test-doctest.py b/tests/test-doctest.py
--- a/tests/test-doctest.py
+++ b/tests/test-doctest.py
@@ -4,7 +4,7 @@ from __future__ import absolute_import
 from __future__ import print_function
 
 import doctest
-import os.path
+import os
 import re
 import subprocess
 import sys