diff --git a/tests/scenario_stock_supply_production.rst b/tests/scenario_stock_supply_production.rst
index a123c095a3..94fab6e3fe 100644
--- a/tests/scenario_stock_supply_production.rst
+++ b/tests/scenario_stock_supply_production.rst
@@ -4,6 +4,7 @@ Production Request Scenario
 
 Imports::
 
+    >>> from datetime import timedelta
     >>> from decimal import Decimal
     >>> from proteus import Model, Wizard
     >>> from trytond.tests.tools import activate_modules
@@ -37,6 +38,13 @@ Create product::
     >>> product.template = template
     >>> product.save()
 
+Define a supply period for production::
+
+    >>> ProductionConfiguration = Model.get('production.configuration')
+    >>> production_configuration = ProductionConfiguration(1)
+    >>> production_configuration.supply_period = timedelta(1)
+    >>> production_configuration.save()
+
 Get stock locations::
 
     >>> Location = Model.get('stock.location')