diff --git a/python/converters/converter_tools.py b/python/converters/converter_tools.py
index bd435656..6f64483d 100644
--- a/python/converters/converter_tools.py
+++ b/python/converters/converter_tools.py
@@ -20,7 +20,8 @@
 #
 ################################################################################
 from pytriqs.cmake_info import hdf5_command_path
-        
+import pytriqs.utility.mpi as mpi
+
 class ConverterTools:
 
     def read_fortran_file(self,filename,to_replace):
diff --git a/python/converters/wien2k_converter.py b/python/converters/wien2k_converter.py
index 89fa221f..7eb852a6 100644
--- a/python/converters/wien2k_converter.py
+++ b/python/converters/wien2k_converter.py
@@ -23,7 +23,6 @@
 from types import *
 import numpy
 from pytriqs.archive import *
-import pytriqs.utility.mpi as mpi
 from converter_tools import *
 
 class Wien2kConverter(ConverterTools):