diff --git a/testserver_o2b/data/ir_cron.xml b/testserver_o2b/data/ir_cron.xml
index 03fa18d..edf8a93 100644
--- a/testserver_o2b/data/ir_cron.xml
+++ b/testserver_o2b/data/ir_cron.xml
@@ -16,7 +16,7 @@
             <field name="name">Testserver: Cleanup Unneeded Filestore</field>
             <field name="model_id" ref="base.model_ir_logging"/>
             <field name="state">code</field>
-            <field name="code">model.cleanup_unneeded_filestore_attachments(100)</field>
+            <field name="code">model.cleanup_unneeded_filestore_attachments(5000)</field>
             <field name="interval_number">15</field>
             <field name="interval_type">minutes</field>
             <field name="user_id" ref="base.user_root"/>
diff --git a/testserver_o2b/models/init_test.py b/testserver_o2b/models/init_test.py
index 32c29fe..4c40072 100644
--- a/testserver_o2b/models/init_test.py
+++ b/testserver_o2b/models/init_test.py
@@ -173,6 +173,7 @@ class IrLogging(models.Model):
              WHERE type = 'binary'
                AND res_field IS NULL
                AND store_fname IS NOT NULL
+               AND res_model not in ('sign.document','sign.request')
              ORDER BY COALESCE(file_size, 0) DESC, id ASC
              LIMIT %s
             """,