diff --git a/db/discrete_material_plan_dao.py b/db/discrete_material_plan_dao.py
index 4b96a32..a350a56 100644
--- a/db/discrete_material_plan_dao.py
+++ b/db/discrete_material_plan_dao.py
@@ -119,7 +119,7 @@ class DiscreteMaterialPlanDAO(BaseDAO):
             SequenceNumber, MaterialCode, MaterialName, Specification, Model,
             DrawingNumber, MaterialQuality, PlanQuantity, Unit, RequiredDate,
             Warehouse, UnitUsage, CumulativeOutputQuantity, BOMVersion
-        ) VALUES ({self._build_placeholders(28)})
+        ) VALUES ({self._build_placeholders(29)})
         """
 
         total_inserted = 0