diff --git a/_modules/tracklab/wrappers/datasets/soccernet/soccernet_mot.html b/_modules/tracklab/wrappers/datasets/soccernet/soccernet_mot.html
index 927720ff..947792dc 100644
--- a/_modules/tracklab/wrappers/datasets/soccernet/soccernet_mot.html
+++ b/_modules/tracklab/wrappers/datasets/soccernet/soccernet_mot.html
@@ -308,10 +308,10 @@ Source code for tracklab.wrappers.datasets.soccernet.soccernet_mot
image_metadata = pd.concat(image_metadata_list, ignore_index=True)
detections = pd.concat(detections_list, ignore_index=True)
- # Sort to obtain deterministic ids and index
+ # Use video_id, image_id, track_id as unique id
detections = detections.sort_values(by=['video_id', 'image_id', 'track_id'], ascending=[True, True, True])
- detections = detections.reset_index(drop=True)
- detections['id'] = detections.index
+ detections['id'] = detections['video_id'].astype(str) + "_" + detections['image_id'].astype(str) + "_" + detections[
+ 'track_id'].astype(str)
# Add category id to detections
category_to_id = {category['name']: category['id'] for category in categories_list}