diff --git a/src/Mod/Fem/femobjects/base_fempythonobject.py b/src/Mod/Fem/femobjects/base_fempythonobject.py
index 65ed19fd43..45b8de4e7d 100644
--- a/src/Mod/Fem/femobjects/base_fempythonobject.py
+++ b/src/Mod/Fem/femobjects/base_fempythonobject.py
@@ -68,7 +68,8 @@ class _PropHelper:
 
     def handle_change_type(self, obj, old_type, convert_old_value=lambda x: x):
         if obj.getTypeIdOfProperty(self.name) == old_type:
-            self.value = convert_old_value(obj.getPropertyByName(self.name))
+            new_value = convert_old_value(obj.getPropertyByName(self.name))
             obj.setPropertyStatus(self.name, "-LockDynamic")
             obj.removeProperty(self.name)
             self.add_to_object(obj)
+            setattr(obj, self.name, new_value)