diff --git a/product/ERP5/Tool/SimulationTool.py b/product/ERP5/Tool/SimulationTool.py
index 94af293c367d353a3c0d85516952860cab23f7bf..2489b6337e6ae170c9284419c54de4c8e51fc459 100644
--- a/product/ERP5/Tool/SimulationTool.py
+++ b/product/ERP5/Tool/SimulationTool.py
@@ -874,7 +874,7 @@ class SimulationTool(BaseTool):
       """
       kw['group_by_variation'] = 0
       method = getattr(self,'get%sInventoryList' % simulation_period)
-      return self.getInventoryList(statistic=1, inventory_list=0, 
+      return method(statistic=1, inventory_list=0, 
                                    ignore_group_by=1, **kw)
 
     security.declareProtected(Permissions.AccessContentsInformation,