diff --git a/setup.py b/setup.py
index 6c49c2f2e..290ba3924 100755
--- a/setup.py
+++ b/setup.py
@@ -24,6 +24,7 @@ testing_extras = [
     'nose',
     'nosexcover',
     'pylint<1.4',  # py2.6 compat, c.f #97
+    'astroid<1.3.0',  # py2.6 compat, c.f. #187
     'tox',
 ]