diff --git a/data_juicer/config/config.py b/data_juicer/config/config.py
index f75c4bef3..8865d12e9 100644
--- a/data_juicer/config/config.py
+++ b/data_juicer/config/config.py
@@ -420,11 +420,13 @@ def init_setup_from_cfg(cfg):
                     'text_key': text_key,
                     'image_key': cfg.image_key,
                     'audio_key': cfg.audio_key,
+                    'video_key': cfg.video_key,
                 }
             elif args['text_key'] is None:
                 args['text_key'] = text_key
                 args['image_key'] = cfg.image_key
                 args['audio_key'] = cfg.audio_key
+                args['video_key'] = cfg.video_key
             op[op_name] = args
 
     return cfg
diff --git a/data_juicer/format/formatter.py b/data_juicer/format/formatter.py
index 987a3667b..d17b34074 100644
--- a/data_juicer/format/formatter.py
+++ b/data_juicer/format/formatter.py
@@ -228,7 +228,7 @@ def non_empty_text(sample, target_keys):
         if video_key in dataset.features:
             data_path_keys.append(video_key)
         if len(data_path_keys) == 0:
-            # no image/audios path list in dataset, no need to convert
+            # no image/audio/videos path list in dataset, no need to convert
             return dataset
 
         if ds_dir == '':
diff --git a/data_juicer/ops/deduplicator/video_deduplicator.py b/data_juicer/ops/deduplicator/video_deduplicator.py
index d06de9f69..205e5a8d3 100644
--- a/data_juicer/ops/deduplicator/video_deduplicator.py
+++ b/data_juicer/ops/deduplicator/video_deduplicator.py
@@ -49,7 +49,7 @@ def compute_hash(self, sample, context=False):
             # consider the multi stream of video in one container
             for packet in videos[key].demux():
                 if packet.stream.type == 'video':
-                    md5_hash.update(packet.to_bytes())
+                    md5_hash.update(bytes(packet))
 
         sample[HashKeys.videohash] = md5_hash.hexdigest()
         return sample