diff --git a/modules/purchase_trade/purchase.py b/modules/purchase_trade/purchase.py
index 109bff3..bd8d43c 100755
--- a/modules/purchase_trade/purchase.py
+++ b/modules/purchase_trade/purchase.py
@@ -509,7 +509,7 @@ class Line(metaclass=PoolMeta):
     
     att_desc = fields.Function(fields.Char("Attributes"),'get_attributes')
 
-    def get_attributes_string(self, name):
+    def get_attributes(self, name):
         Attribute = Pool().get('product.attribute')
 
         if not self.attributes: