diff --git a/sncfgtfs/management/commands/update_sncf_gtfs.py b/sncfgtfs/management/commands/update_sncf_gtfs.py
index 1d6b52e..ddb7372 100644
--- a/sncfgtfs/management/commands/update_sncf_gtfs.py
+++ b/sncfgtfs/management/commands/update_sncf_gtfs.py
@@ -326,7 +326,7 @@ class Command(BaseCommand):
                             pickup_type = 1
 
                     st = StopTime(
-                        id=f"{trip_id}-{stop_id}",
+                        id=f"{trip_id}-{stop_id}-{stop_time_dict['departure_time']}",
                         trip_id=trip_id,
                         arrival_time=timedelta(seconds=arr_time),
                         departure_time=timedelta(seconds=dep_time),