1 files changed, 3 insertions, 1 deletions

diff --git a/setup.py b/setup.py
index cc0a3b0..d091592 100644
--- a/setup.py
+++ b/setup.py
@@ -80,7 +80,9 @@ class Check(Command):
 
     def run_yarns(self):
         cliapp.runcmd(
-            ['yarn'] + glob.glob('yarns/*.yarn'),
+            ['yarn', '--shell=python2', '--shell-arg', '',
+             '--shell-library=yarns/lib.py', '--cd-datadir'] +
+            glob.glob('yarns/*.yarn'),
             stdout=None, stderr=None)
 
     def command_is_available(self, command_name):