diff --git a/autogen/_website/generate_mkdocs.py b/autogen/_website/generate_mkdocs.py
index 192e3f98f6..6c9fec074d 100644
--- a/autogen/_website/generate_mkdocs.py
+++ b/autogen/_website/generate_mkdocs.py
@@ -19,7 +19,7 @@ def filter_excluded_files(files: list[Path], exclusion_list: list[str], website_
     return [
         file
         for file in files
-        if not any(str(file.relative_to(website_dir)).startswith(excl) for excl in exclusion_list)
+        if not any(Path(str(file.relative_to(website_dir))).as_posix().startswith(excl) for excl in exclusion_list)
     ]