diff --git a/rero_ils/modules/patrons/api.py b/rero_ils/modules/patrons/api.py
index 4fcf8b67eb..cf57c89610 100644
--- a/rero_ils/modules/patrons/api.py
+++ b/rero_ils/modules/patrons/api.py
@@ -426,8 +426,7 @@ def get_patrons_without_subscription(cls, patron_type_pid):
         """Get patrons linked to patron_type that haven't any subscription."""
         query = PatronsSearch() \
             .filter('term', patron__type__pid=patron_type_pid) \
-            .filter('bool', must_not=[
-                Q('exists', field="patron__subscriptions")])
+            .exclude('exists', field='patron.subscriptions')
         for res in query.source('pid').scan():
             yield Patron.get_record_by_pid(res.pid)
 
diff --git a/tests/api/patrons/test_patrons_rest.py b/tests/api/patrons/test_patrons_rest.py
index f0af1ddbb9..770575a97b 100644
--- a/tests/api/patrons/test_patrons_rest.py
+++ b/tests/api/patrons/test_patrons_rest.py
@@ -114,9 +114,9 @@ def test_patron_has_valid_subscriptions(
     patron_sion.add_subscription(patron_type_grown_sion, start, end)
     # !! As `add_subscription` use the method `Patron.update`, then the signal
     #    `after_record_update` are send by invenio_records and the patron
-    #    listener `reate_subscription_patron_transaction` is called. This
+    #    listener `create_subscription_patron_transaction` is called. This
     #    listener found that user doesn't have any subscription and add a valid
-    #    one for this patron. So after `add_subscription` call, i just removed
+    #    one for this patron. So after `add_subscription` call, I just removed
     #    the valid subscription created.
     del patron_sion['patron']['subscriptions'][1]
     assert not patron_sion.has_valid_subscription