diff --git a/modules/mol/alg/pymod/wrap_mol_alg.cc b/modules/mol/alg/pymod/wrap_mol_alg.cc
index 8949279dbc7f603174818f9166cc7bb7118d2748..770bcf423094b4f77e179f5cea9a652cc8e518fd 100644
--- a/modules/mol/alg/pymod/wrap_mol_alg.cc
+++ b/modules/mol/alg/pymod/wrap_mol_alg.cc
@@ -107,7 +107,7 @@ BOOST_PYTHON_MODULE(_ost_mol_alg)
   def("FilterClashes", fc_b, (arg("ent"), arg("clashing_distances"), arg("always_remove_bb")=false));
   def("CheckStereoChemistry", csc_a, (arg("ent"), arg("bonds"), arg("angles"), arg("bond_tolerance"), arg("angle_tolerance"), arg("always_remove_bb")=false));
   def("CheckStereoChemistry", csc_b, (arg("ent"), arg("bonds"), arg("angles"), arg("bond_tolerance"), arg("angle_tolerance"), arg("always_remove_bb")=false));
-  def("LDDTHA",&mol::alg::LDDTHA);
+  def("LDDTHA",&mol::alg::LDDTHA, (arg("sequence_separation")=0));
   def("CreateDistanceList",&mol::alg::CreateDistanceList);
   def("CreateDistanceListFromMultipleReferences",&create_distance_list_from_multiple_references);