diff --git a/python/triqs_dft_tools/sumk_dft.py b/python/triqs_dft_tools/sumk_dft.py
index e78d45ae..3e6a9309 100644
--- a/python/triqs_dft_tools/sumk_dft.py
+++ b/python/triqs_dft_tools/sumk_dft.py
@@ -516,7 +516,7 @@ class SumkDFT(object):
             mu = self.chemical_potential
         ntoi = self.spin_names_to_ind[self.SO]
         spn = self.spin_block_names[self.SO]
-        if self.Sigma_inp is None:
+        if self.Sigma_imp is None:
             with_Sigma = False
         if broadening is None:
             if mesh is None:
diff --git a/python/triqs_dft_tools/sumk_dft_tools.py b/python/triqs_dft_tools/sumk_dft_tools.py
index 21e6cab3..ef020eec 100644
--- a/python/triqs_dft_tools/sumk_dft_tools.py
+++ b/python/triqs_dft_tools/sumk_dft_tools.py
@@ -41,7 +41,7 @@ class SumkDFTTools(SumkDFT):
     Extends the SumkDFT class with some tools for analysing the data.
     """
 
-    def __init__(self, hdf_file, h_field=0.0, mesh=None, bets=40, n_iw=1025, use_dft_blocks=False, dft_data='dft_input', symmcorr_data='dft_symmcorr_input',
+    def __init__(self, hdf_file, h_field=0.0, mesh=None, beta=40, n_iw=1025, use_dft_blocks=False, dft_data='dft_input', symmcorr_data='dft_symmcorr_input',
                  parproj_data='dft_parproj_input', symmpar_data='dft_symmpar_input', bands_data='dft_bands_input',
                  transp_data='dft_transp_input', misc_data='dft_misc_input'):
         """