diff --git a/doc/advanced.rst b/doc/advanced.rst
index 87ae08fb..6a1e49d2 100644
--- a/doc/advanced.rst
+++ b/doc/advanced.rst
@@ -138,7 +138,7 @@ previous section, with some additional refinement::
             ar['Sigma'] = S.Sigma
             ar['GF'] = S.G
             del ar
-        save_Gf(S.Sigma,'Sigma')
+
         # Now set new double counting:
         dm = S.G.density()
         SK.set_dc( dm, U_interact = U, J_hund = J, orb = 0, use_dc_formula = dc_type)