diff --git a/rmgpy/data/kinetics/family.py b/rmgpy/data/kinetics/family.py
index 3b7b379fd6..fcefc2210d 100644
--- a/rmgpy/data/kinetics/family.py
+++ b/rmgpy/data/kinetics/family.py
@@ -1681,11 +1681,6 @@ def is_molecule_forbidden(self, molecule):
                     for atom in molecule.atoms:
                         if atom.atomtype.label == 'Xv':
                             return True
-      #  elif "surface" in self.label.lower():
-      #      if molecule.get_num_atoms('X') > 1:
-      #          for atom in molecule.atoms:
-      #              if atom.atomtype.label == 'Xv':
-      #                  return True
 
         return False