diff --git a/move.py b/move.py
index 067c9d7b53..6c6af4e58d 100644
--- a/move.py
+++ b/move.py
@@ -835,7 +835,7 @@ class Line(ModelSQL, ModelView):
             amount = cursor.fetchone()[0]
             # SQLite uses float for SUM
             if not isinstance(amount, Decimal):
-                amout = Decimal(str(amount))
+                amount = Decimal(str(amount))
             if not currency_obj.is_zero( party.account_receivable.currency,
                     amount):
                 if amount > Decimal('0.0'):