diff --git a/purchase.py b/purchase.py
index 1c34cbadf6..d247ce0d3b 100644
--- a/purchase.py
+++ b/purchase.py
@@ -475,7 +475,6 @@ class Purchase(
         self.untaxed_amount = Decimal('0.0')
         self.tax_amount = Decimal('0.0')
         self.total_amount = Decimal('0.0')
-        taxes = {}
         if self.lines:
             for line in self.lines:
                 self.untaxed_amount += getattr(line, 'amount', None) or 0