diff --git a/package/kedro_viz/integrations/kedro/hooks.py b/package/kedro_viz/integrations/kedro/hooks.py
index 4f49955a7d..1fb82c7b19 100644
--- a/package/kedro_viz/integrations/kedro/hooks.py
+++ b/package/kedro_viz/integrations/kedro/hooks.py
@@ -5,7 +5,7 @@
 import json
 import logging
 from collections import defaultdict
-from pathlib import Path
+from pathlib import PurePosixPath
 from typing import Any, Union
 
 from kedro.framework.hooks import hook_impl
@@ -135,7 +135,9 @@ def get_file_size(self, dataset: Any) -> Union[int, None]:
             return None
 
         try:
-            file_path = get_filepath_str(Path(dataset._filepath), dataset._protocol)
+            file_path = get_filepath_str(
+                PurePosixPath(dataset._filepath), dataset._protocol
+            )
             return dataset._fs.size(file_path)
 
         except Exception as exc: