diff --git a/scikit_mol/standardizer.py b/scikit_mol/standardizer.py
index b08e4bd..7dc9f32 100644
--- a/scikit_mol/standardizer.py
+++ b/scikit_mol/standardizer.py
@@ -29,6 +29,8 @@ def transform(self, X):
             if self.neutralize:
                 uncharger = rdMolStandardize.Uncharger()
                 uncharged_parent_clean_mol = uncharger.uncharge(parent_clean_mol)
+            else:
+                uncharged_parent_clean_mol = parent_clean_mol
             # Add to final list
             arr.append(uncharged_parent_clean_mol)