diff --git a/examples/OpticalSurfaces/scripts/OpNovice_GDML.py b/examples/OpticalSurfaces/scripts/OpNovice_GDML.py
index 9ce66eaa439839231e411ed16021786e7351bfee..113388c989b0ccd32dad70f014496a898382aa85 100644
--- a/examples/OpticalSurfaces/scripts/OpNovice_GDML.py
+++ b/examples/OpticalSurfaces/scripts/OpNovice_GDML.py
@@ -6,6 +6,7 @@
    @version 1.0
 
 """
+from __future__ import absolute_import, unicode_literals
 import os, sys, time, logging, DDG4
 from DDG4 import OutputLevel as Output