diff --git a/nerdshope/models.py b/nerdshope/models.py
index 160dfc3..972f1f8 100644
--- a/nerdshope/models.py
+++ b/nerdshope/models.py
@@ -7,7 +7,7 @@ class BankAccount(models.Model):
 	physical=models.CharField(max_length=100)
 	currency=models.CharField(max_length=5)
 	@property
-	def balance(self): return sum(map(Payment.objects.filter(account=self)))
+	def balance(self): return sum(map(lambda x:x.amount,Payment.objects.filter(account=self)))
 	
 	def __str__(self):
 		return str(self.name)+', '+str(self.balance)