diff --git a/odoo/tests/common.py b/odoo/tests/common.py
index 165e4459779..3c4344b3a1e 100644
--- a/odoo/tests/common.py
+++ b/odoo/tests/common.py
@@ -449,7 +449,7 @@ class HttpCase(TransactionCase):
             _logger.info('phantomjs unlink localstorage %s', i)
             os.unlink(i)
         try:
-            phantom = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=None, close_fds=True)
+            phantom = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=None)
         except OSError:
             raise unittest.SkipTest("PhantomJS not found")
         try: