diff --git a/modules/purchase_trade/valuation.py b/modules/purchase_trade/valuation.py
index 34cdcbb..1c76b56 100644
--- a/modules/purchase_trade/valuation.py
+++ b/modules/purchase_trade/valuation.py
@@ -353,9 +353,6 @@ class Valuation(ValuationBase, ModelView):
     "Valuation"
     __name__ = 'valuation.valuation'
 
-class Valuation(ModelSQL):
-    __name__ = 'valuation.valuation'
-
     @classmethod
     def get_totals(cls):
         cursor = Transaction().connection.cursor()