diff --git a/tests/unit_tests/test_mesh_to_vtk.py b/tests/unit_tests/test_mesh_to_vtk.py
index e487b3668b..cfb0407ca0 100644
--- a/tests/unit_tests/test_mesh_to_vtk.py
+++ b/tests/unit_tests/test_mesh_to_vtk.py
@@ -1,5 +1,6 @@
 import numpy as np
 from os.path import exists
+from pathlib import Path
 import pytest
 import vtk
 from vtk.util import numpy_support as nps