diff --git a/_unittest/test_07_Object3D.py b/_unittest/test_07_Object3D.py
index 22ec8213312..ce038e5dd3a 100644
--- a/_unittest/test_07_Object3D.py
+++ b/_unittest/test_07_Object3D.py
@@ -226,6 +226,8 @@ def test_07_object_clone_and_get_properties(self):
         assert len(new_object.faces) == 6
         assert len(new_object.edges) == 12
         assert new_object.display_wireframe == initial_object.display_wireframe
+        new_object.name = "Properties_Box"
+        assert not new_object.name == "Properties_Box"
 
     def test_08_set_model(self):
         o = self.create_copper_box()
diff --git a/pyaedt/modeler/cad/object3d.py b/pyaedt/modeler/cad/object3d.py
index 7753901dfd3..ce8fd8a3cc4 100644
--- a/pyaedt/modeler/cad/object3d.py
+++ b/pyaedt/modeler/cad/object3d.py
@@ -1089,7 +1089,7 @@ def name(self, obj_name):
                 self._primitives.add_new_objects()
                 self._primitives.cleanup_objects()
         else:
-            pass
+            self.logger.warning("{} is already used in current design.".format(obj_name))
 
     @property
     def valid_properties(self):