diff --git a/python/triqs_dft_tools/converters/wannier90.py b/python/triqs_dft_tools/converters/wannier90.py
index c28c84b3..4af1ea9c 100644
--- a/python/triqs_dft_tools/converters/wannier90.py
+++ b/python/triqs_dft_tools/converters/wannier90.py
@@ -51,8 +51,7 @@ from h5 import *
 from .converter_tools import *
 from itertools import product
 import os.path
-import pytriqs.utility.mpi as mpi
-
+import triqs.utility.mpi as mpi
 
 class Wannier90Converter(ConverterTools):
     """
@@ -61,7 +60,7 @@ class Wannier90Converter(ConverterTools):
 
     def __init__(self, seedname, hdf_filename=None, dft_subgrp='dft_input',
                  symmcorr_subgrp='dft_symmcorr_input', repacking=False,
-                 rot_mat_type = 'hloc_diag'):
+                 rot_mat_type='hloc_diag'):
         """
         Initialise the class.
 
diff --git a/test/python/w90_convert.py b/test/python/w90_convert.py
index 411b0378..ec4de1d8 100644
--- a/test/python/w90_convert.py
+++ b/test/python/w90_convert.py
@@ -26,7 +26,7 @@ from h5 import *
 from triqs.utility.h5diff import h5diff
 import triqs.utility.mpi as mpi
 
-Converter = Wannier90Converter(seedname='LaVO3-Pnma',hdf_filename='w90_convert.out.h5')
+Converter = Wannier90Converter(seedname='LaVO3-Pnma',hdf_filename='w90_convert.out.h5', rot_mat_type='wannier')
 
 Converter.convert_dft_input()