diff --git a/modules/mol/alg/pymod/scoring.py b/modules/mol/alg/pymod/scoring.py
index 9021b1c5daba0a172af213009314b72d2700209a..ae3bf7a75f63f9afc69cd59076b17246ae536f1e 100644
--- a/modules/mol/alg/pymod/scoring.py
+++ b/modules/mol/alg/pymod/scoring.py
@@ -2490,3 +2490,6 @@ class Scorer:
         self._usalign_mapping = dict()
         for a,b in zip(res.ent1_mapped_chains, res.ent2_mapped_chains):
             self._usalign_mapping[b] = a
+
+# specify public interface
+__all__ = ('lDDTBSScorer', 'Scorer',)