diff --git a/modules/mol/alg/pymod/ligand_scoring.py b/modules/mol/alg/pymod/ligand_scoring.py
index 09f578e7887b6ea12275e5f1c13006746c398530..4b1c57d4096c1d67a620b90f5b638c0b0fe2410e 100644
--- a/modules/mol/alg/pymod/ligand_scoring.py
+++ b/modules/mol/alg/pymod/ligand_scoring.py
@@ -1154,6 +1154,7 @@ class LigandScorer:
 
         self.__model_mapping = chain_mapping.MappingResult(chain_mapper.target, mdl,
                                                            chain_mapper.chem_groups,
+                                                           chem_mapping,
                                                            final_mapping, alns)
 
 def _ResidueToGraph(residue, by_atom_index=False):