diff --git a/modules/purchase_trade/__init__.py b/modules/purchase_trade/__init__.py
index 85b32de..13a1881 100755
--- a/modules/purchase_trade/__init__.py
+++ b/modules/purchase_trade/__init__.py
@@ -163,7 +163,7 @@ def register():
         purchase.ContractDocumentType,
         purchase.DocTemplate,
         purchase.DocTypeTemplate,
-        purchase.Mtm,
+        purchase.MtmStrategy,
         weight_report.WeightReport,
         module='purchase', type_='model')
     Pool.register(
@@ -204,7 +204,7 @@ def register():
         forex.SForex,
         forex.ForexCoverPhysicalSale,
         sale.ContractDocumentType,
-        sale.Mtm,
+        sale.MtmStrategy,
         sale.OpenPosition,
         module='sale', type_='model')
     Pool.register(