diff --git a/force_bdss/core_evaluation_driver.py b/force_bdss/core_evaluation_driver.py
index d7cc54c6aadb70953636fe5944ec56ffd912a884..08c85760d0564642eb2b8404846dd6d634e99b38 100644
--- a/force_bdss/core_evaluation_driver.py
+++ b/force_bdss/core_evaluation_driver.py
@@ -1,3 +1,5 @@
+from __future__ import print_function
+
 import sys
 from traits.api import on_trait_change