diff --git a/video_llama/datasets/datasets/webvid_datasets.py b/video_llama/datasets/datasets/webvid_datasets.py
index aaf6b9d6..4c624db6 100644
--- a/video_llama/datasets/datasets/webvid_datasets.py
+++ b/video_llama/datasets/datasets/webvid_datasets.py
@@ -40,7 +40,7 @@ def __init__(self, vis_processor, text_processor, vis_root, ann_root):
         self.frm_sampling_strategy = 'headtail'
 
     def _get_video_path(self, sample):
-        rel_video_fp = os.path.join(sample['page_dir'], str(sample['videoid']) + '.mp4')
+        rel_video_fp = os.path.join(str(sample['page_dir']), str(sample['videoid']) + '.mp4')
         full_video_fp = os.path.join(self.vis_root,  rel_video_fp)
         return full_video_fp