diff --git a/delivery_parcelhub_whistl/models/delivery.py b/delivery_parcelhub_whistl/models/delivery.py
index ef165a4..8d47722 100644
--- a/delivery_parcelhub_whistl/models/delivery.py
+++ b/delivery_parcelhub_whistl/models/delivery.py
@@ -576,7 +576,9 @@ def whistl_tracking_state_update_scheduled(self, batch_size=100):
                 continue
             self.whistl_tracking_state_update(picking)
         if self._whistl_get_waiting_pickings():
-            self.with_delay().whistl_tracking_state_update_scheduled()
+            self.with_delay().whistl_tracking_state_update_scheduled(
+                batch_size=batch_size
+            )
 
     def whistl_tracking_state_update(self, picking):
         request_url = self._get_whistl_tracking_url(