diff --git a/sncfgtfs/management/commands/update_sncf_gtfs_rt.py b/sncfgtfs/management/commands/update_sncf_gtfs_rt.py
index dba5c01..7830feb 100644
--- a/sncfgtfs/management/commands/update_sncf_gtfs_rt.py
+++ b/sncfgtfs/management/commands/update_sncf_gtfs_rt.py
@@ -72,7 +72,7 @@ class Command(BaseCommand):
                             continue
                         elif len(route_ids) > 1:
                             self.stdout.write(f"Multiple routes found for trip {trip_id}.")
-                            self.stderr.write(", ".join(route_ids))
+                            self.stdout.write(", ".join(route_ids))
                         route_id = route_ids.pop()
 
                         Calendar.objects.update_or_create(