diff --git a/tests/test_wsi_dataset.py b/tests/test_wsi_dataset.py
index c40627a..0d700f4 100644
--- a/tests/test_wsi_dataset.py
+++ b/tests/test_wsi_dataset.py
@@ -5,7 +5,6 @@
 from pydicom.dataelem import DataElement
 from pydicom.uid import UID, generate_uid
 
-from tests.file.io.test_wsidicom_writer import WsiDicomTestImageData
 from wsidicom.geometry import SizeMm
 from wsidicom.instance import ImageData, TileType
 from wsidicom.instance.dataset import ImageType, WsiDataset