diff --git a/python/triqs_dft_tools/sumk_dft_tools.py b/python/triqs_dft_tools/sumk_dft_tools.py
index 77f12738..9cf955f2 100644
--- a/python/triqs_dft_tools/sumk_dft_tools.py
+++ b/python/triqs_dft_tools/sumk_dft_tools.py
@@ -862,7 +862,7 @@ class SumkDFTTools(SumkDFT):
         if ishell is not None:
             gf_struct_parproj = [
                 (sp, self.shells[ishell]['dim']) for sp in spn]
-            G_loc = BlockGf(name_block_generator=[(block, GfReFreq(target_shape=(block_dim, block_dim), mesh=self.Sigma_imp_w[0].mesh))
+            G_loc = BlockGf(name_block_generator=[(block, GfReFreq(target_shape=(block_dim, block_dim), mesh=self.Sigma_imp[0].mesh))
                                                   for block, block_dim in gf_struct_parproj], make_copies=False)
             G_loc.zero()
 
@@ -1207,7 +1207,7 @@ class SumkDFTTools(SumkDFT):
                     spn = self.spin_block_names[self.corr_shells[icrsh]['SO']]
                     glist = lambda: [GfReFreq(target_shape=(block_dim, block_dim), window=(self.omega[
                                               0], self.omega[-1]), n_points=n_om) for block, block_dim in self.gf_struct_sumk[icrsh]]
-                    self.Sigma_imp_w[icrsh] = BlockGf(
+                    self.Sigma_imp[icrsh] = BlockGf(
                         name_list=spn, block_list=glist(), make_copies=False)
                     for i, g in self.Sigma_imp[icrsh]:
                         for iL in g.indices[0]:
diff --git a/test/python/SrVO3_Sigma_transport.h5 b/test/python/SrVO3_Sigma_transport.h5
new file mode 100644
index 00000000..616aafcc
Binary files /dev/null and b/test/python/SrVO3_Sigma_transport.h5 differ
diff --git a/test/python/srvo3_transp.py b/test/python/srvo3_transp.py
index dcbf613b..04893c25 100644
--- a/test/python/srvo3_transp.py
+++ b/test/python/srvo3_transp.py
@@ -20,11 +20,12 @@
 ################################################################################
 
 from numpy import *
+from h5 import HDFArchive
 from triqs_dft_tools.converters.wien2k import *
 from triqs_dft_tools.sumk_dft import *
 from triqs_dft_tools.sumk_dft_tools import *
 from triqs.utility.comparison_tests import *
-from triqs.utility.h5diff import h5diff 
+from triqs.utility.h5diff import h5diff
 
 beta = 40
 
@@ -32,7 +33,7 @@ Converter = Wien2kConverter(filename='SrVO3', repacking=True)
 Converter.convert_dft_input()
 Converter.convert_transport_input()
 
-with HDFArchive('SrVO3_Sigma.h5', 'a') as ar:
+with HDFArchive('SrVO3_Sigma_transport.h5', 'a') as ar:
     Sigma = ar['dmft_transp_input']['Sigma_w']
     SK = SumkDFTTools(hdf_file='SrVO3.ref.h5', mesh=Sigma.mesh, use_dft_blocks=True)
     SK.set_Sigma([Sigma])
@@ -47,4 +48,4 @@ SK.hdf_file = 'srvo3_transp.out.h5'
 SK.save(['seebeck','optic_cond','kappa'])
 
 if mpi.is_master_node():
-    h5diff("srvo3_transp.out.h5","srvo3_transp.ref.h5") 
+    h5diff("srvo3_transp.out.h5","srvo3_transp.ref.h5")