diff --git a/passerelle/apps/cartads_cs/models.py b/passerelle/apps/cartads_cs/models.py
index b625cbfd..00e7ff74 100644
--- a/passerelle/apps/cartads_cs/models.py
+++ b/passerelle/apps/cartads_cs/models.py
@@ -433,7 +433,7 @@ class CartaDSCS(BaseResource):
             status_id = 'cartads-%s' % steps[-1]['IdEtape']
             status_label = steps[-1]['LibelleEtape']
             extra = {}
-            for key in steps[-1].keys():
+            for key in steps[-1]:
                 extra[key] = steps[-1][key]
         elif dossier.zip_sent:
             status_id = 'zip-sent'