diff --git a/modules/purchase_trade/__init__.py b/modules/purchase_trade/__init__.py
index 1716b9c..e55d337 100755
--- a/modules/purchase_trade/__init__.py
+++ b/modules/purchase_trade/__init__.py
@@ -199,6 +199,7 @@ def register():
         sale.Derivative,
         sale.Valuation,
         sale.ValuationLine,
+        sale.ValuationDyn,
         sale.ValuationReport,
         sale.Fee,
         sale.Lot,