diff --git a/python/dune/perftool/sympy.py b/python/dune/perftool/sympy.py
index b4c788815a0776ed4ae29188bc1c1d4256d1cecb..419fccd3ed01849e29a6aea6cdaf2ef05a8280e8 100644
--- a/python/dune/perftool/sympy.py
+++ b/python/dune/perftool/sympy.py
@@ -1,3 +1,4 @@
+from __future__ import absolute_import
 from pymbolic.interop.sympy import SympyToPymbolicMapper, PymbolicToSympyMapper
 
 import pymbolic.primitives as prim