diff --git a/src/ansys/aedt/core/modeler/modeler_pcb.py b/src/ansys/aedt/core/modeler/modeler_pcb.py
index 6a96d2d64dc..1eb485a22b9 100644
--- a/src/ansys/aedt/core/modeler/modeler_pcb.py
+++ b/src/ansys/aedt/core/modeler/modeler_pcb.py
@@ -739,14 +739,14 @@ def duplicate(self, assignment, count, vector):
         assignment : list
             List of elements to duplicate.
         count : int
-
+            Number of clones.
         vector : list
             List of ``[x,y]`` coordinates for the direction vector.
 
         Returns
         -------
-        bool
-            ``True`` when successful, ``False`` when failed.
+        tuple
+            List of added objects, List of removed names.
 
         References
         ----------
@@ -756,9 +756,7 @@ def duplicate(self, assignment, count, vector):
         assignment = self.convert_to_selections(assignment, True)
 
         self.cleanup_objects()
-        if isinstance(assignment, str):
-            assignment = [assignment]
-        self.oeditor.Duplicate(["NAME:options", "count:=", count], ["NAME:elements", ",".join(assignment)], vector)
+        self.oeditor.Duplicate(["NAME:options", "count:=", count], ["NAME:elements"] + assignment, vector)
         return self.cleanup_objects()
 
     @pyaedt_function_handler(objects="assignment")
diff --git a/tests/system/general/test_41_3dlayout_modeler.py b/tests/system/general/test_41_3dlayout_modeler.py
index cc4260d976b..8dbf26bd4c6 100644
--- a/tests/system/general/test_41_3dlayout_modeler.py
+++ b/tests/system/general/test_41_3dlayout_modeler.py
@@ -597,7 +597,9 @@ def test_21_variables(self):
 
     def test_26_duplicate(self):
         n2 = self.aedtapp.modeler.create_rectangle("Top", [0, 0], [6, 8], 3, 2, "myrectangle_d")
-        assert self.aedtapp.modeler.duplicate("myrectangle_d", 2, [1, 1])
+        n3 = self.aedtapp.modeler.create_rectangle("Top", [0, 0], [6, 8], 3, 2, "myrectangle_d2")
+        new_objects = self.aedtapp.modeler.duplicate([n2.name, n3.name], 2, [1, 1])
+        assert len(new_objects[0]) == 4
         assert self.aedtapp.modeler.duplicate_across_layers("myrectangle_d", "Bottom")
 
     def test_27_create_pin_port(self):