diff --git a/modules/purchase_trade/pricing.py b/modules/purchase_trade/pricing.py
index c0fb8f8..fe5e5a4 100755
--- a/modules/purchase_trade/pricing.py
+++ b/modules/purchase_trade/pricing.py
@@ -102,7 +102,7 @@ class MtmStrategy(ModelSQL, ModelView):
         for comp in self.components:
             value = Decimal(0)
 
-            if comp.price_source_type == 'curve' and comp.price_curve:
+            if comp.price_source_type == 'curve' and comp.price_index:
                 value = Decimal(
                     comp.price_index.get_price(
                         dt,