diff --git a/lerobot/scripts/visualize_dataset_html.py b/lerobot/scripts/visualize_dataset_html.py
index 0fc21a8f..d0c8f1ac 100644
--- a/lerobot/scripts/visualize_dataset_html.py
+++ b/lerobot/scripts/visualize_dataset_html.py
@@ -174,7 +174,10 @@ def run_server(
                 dataset.meta.get_video_file_path(episode_id, key) for key in dataset.meta.video_keys
             ]
             videos_info = [
-                {"url": url_for("static", filename=video_path), "filename": video_path.parent.name}
+                {
+                    "url": url_for("static", filename=str(video_path).replace("\\", "/")),
+                    "filename": video_path.parent.name,
+                }
                 for video_path in video_paths
             ]
             tasks = dataset.meta.episodes[episode_id]["tasks"]
@@ -381,7 +384,7 @@ def visualize_dataset_html(
         if isinstance(dataset, LeRobotDataset):
             ln_videos_dir = static_dir / "videos"
             if not ln_videos_dir.exists():
-                ln_videos_dir.symlink_to((dataset.root / "videos").resolve())
+                ln_videos_dir.symlink_to((dataset.root / "videos").resolve().as_posix())
 
         if serve:
             run_server(dataset, episodes, host, port, static_dir, template_dir)