diff --git a/modules/purchase/purchase_reporting.py b/modules/purchase/purchase_reporting.py
index 77f19af385..249f86eed8 100644
--- a/modules/purchase/purchase_reporting.py
+++ b/modules/purchase/purchase_reporting.py
@@ -288,7 +288,7 @@ class Supplier(SupplierMixin, Abstract, ModelView):
 
     time_series = fields.One2Many(
         'purchase.reporting.supplier.time_series', 'supplier',
-        lazy_gettext('purchase.msg_purchase_reporting_time_series')),
+        lazy_gettext('purchase.msg_purchase_reporting_time_series'))
 
     @classmethod
     def __setup__(cls):