diff --git a/configuration.py b/configuration.py
index e09f499366..dfd5c0b596 100644
--- a/configuration.py
+++ b/configuration.py
@@ -12,7 +12,7 @@ from trytond.modules.company.model import (
 __all__ = ['Configuration',
     'ConfigurationSequence', 'ConfigurationSaleMethod']
 sale_invoice_method = fields.Selection(
-    'get_sale_shipment_methods', "Sale Invoice Method")
+    'get_sale_invoice_methods', "Sale Invoice Method")
 sale_shipment_method = fields.Selection(
     'get_sale_shipment_methods', "Sale Shipment Method")