diff --git a/saas_cluster_simple/main.py b/saas_cluster_simple/main.py
index e90c53f4..51536c83 100644
--- a/saas_cluster_simple/main.py
+++ b/saas_cluster_simple/main.py
@@ -159,8 +159,8 @@ def deploy_backup(backup_name):
     }
 
 
-def signal_changes(db):
-    registry(db).signal_changes()
+def signal_changes(db_name):
+    registry(db_name).signal_changes()
 
 
 # Modified version of odoo.service.model.execute