diff --git a/src/View/Pollutants/UndoCommand.py b/src/View/Pollutants/UndoCommand.py
index fa612ddc..f27958c8 100644
--- a/src/View/Pollutants/UndoCommand.py
+++ b/src/View/Pollutants/UndoCommand.py
@@ -34,14 +34,14 @@ class SetNameCommand(QUndoCommand):
 
         self._pollutants_lst = pollutants_lst
         self._index = index
-        self._old = self._pollutants_lst.get(self._index).name
+        self._old = self._pollutants_lst[self._index].name
         self._new = str(new_value)
 
     def undo(self):
-        self._pollutants_lst.get(self._index).name = self._old
+        self._pollutants_lst[self._index].name = self._old
 
     def redo(self):
-        self._pollutants_lst.get(self._index).name = self._new
+        self._pollutants_lst[self._index].name = self._new
 
 
 class SetEnabledCommand(QUndoCommand):