--- a/python/mozbuild/mozbuild/codecoverage/lcov_rewriter.py
+++ b/python/mozbuild/mozbuild/codecoverage/lcov_rewriter.py
@@ -1,16 +1,20 @@
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 from argparse import ArgumentParser
 import json
 import os
-import urlparse
+
+try:
+    import urlparse
+except ImportError:
+    import urllib.parse as urlparse
 
 from mozpack.chrome.manifest import parse_manifest
 import mozpack.path as mozpath
 from manifest_handler import ChromeManifestHandler
 
 class LcovRecord(object):
     __slots__ = ("test_name",
                  "source_file",