diff --git a/modules/mol/alg/pymod/ligand_scoring.py b/modules/mol/alg/pymod/ligand_scoring.py
index f3fe6ffb35916406cae844fc74366513dd5f8bda..96d2a6b514d2b1fe11fabfa5d2bf9b19ab44d6f6 100644
--- a/modules/mol/alg/pymod/ligand_scoring.py
+++ b/modules/mol/alg/pymod/ligand_scoring.py
@@ -161,7 +161,7 @@ class LigandScorer:
         elif isinstance(target, mol.EntityHandle):
             self.target = target.Copy()
         else:
-            raise RuntimeError("model must be of type EntityView/EntityHandle")
+            raise RuntimeError("target must be of type EntityView/EntityHandle")
 
         # Extract ligands from target
         if target_ligands is None: