diff --git a/tests/run-tests.py b/tests/run-tests.py
index 61fc2cdbc57c7ef651f6161e63f584a9dde17dca_dGVzdHMvcnVuLXRlc3RzLnB5..570141fa38f93f94800653cecf51bdd998ee777f_dGVzdHMvcnVuLXRlc3RzLnB5 100755
--- a/tests/run-tests.py
+++ b/tests/run-tests.py
@@ -66,6 +66,8 @@
 from xml.dom import minidom
 import unittest
 
+osenvironb = getattr(os, 'environb', os.environ)
+
 try:
     import json
 except ImportError: