diff --git a/website/members/management/commands/get_mercadopago_payments.py b/website/members/management/commands/get_mercadopago_payments.py
index 03c43c6..fc8354a 100644
--- a/website/members/management/commands/get_mercadopago_payments.py
+++ b/website/members/management/commands/get_mercadopago_payments.py
@@ -74,6 +74,9 @@ def process_mercadopago(self, results, filter_payment_id, filter_payer_id):
             # needed information to record the payment
             timestamp = parse_datetime(info['date_approved'])
             amount = Decimal(info['transaction_amount'])
+            if amount <= 0:
+                logger.debug("Discarding invalid amount: %s", info)
+                continue
 
             # some info to identify the payer in case it's not in our DB
             id_helper = {