diff --git a/product/ERP5/Tool/SimulationTool.py b/product/ERP5/Tool/SimulationTool.py
index 03daff945b6cf9c919140d4b5b0f0f8ed4b48989..46939e8276bbbcd4059b3ce997efac62c30dfac4 100644
--- a/product/ERP5/Tool/SimulationTool.py
+++ b/product/ERP5/Tool/SimulationTool.py
@@ -797,7 +797,7 @@ class SimulationTool(BaseTool):
 
       if group_by_section_category:
         related_key_group_by_expression_list.append('section_category_uid')
-        related_key_select_expression_list.append('stock_section_category_uid')
+        related_key_select_expression_list.append('section_category_uid')
       if group_by_section_category_strict_membership:
         related_key_group_by_expression_list.append(
             'section_category_strict_membership_uid')