diff --git a/tests/py/test_callbacks.py b/tests/py/test_callbacks.py
index e0d3ddea26..547849d08b 100644
--- a/tests/py/test_callbacks.py
+++ b/tests/py/test_callbacks.py
@@ -117,7 +117,7 @@ def test_coinbase_success_callback(self, re):
         assert re.call_count == 1
         assert re.call_args[0][0] == self.db
         assert re.call_args[0][1].id == route.id
-        assert re.call_args[0][2:4] == (D('-0.99'), D('0.01')) # Amount, Fee
+        assert re.call_args[0][2:4] == (D('0.99'), D('0.01')) # Amount, Fee
         assert re.call_args[0][4].id == alice.id
         assert re.call_args[0][5] == 'succeeded' # Status
 
diff --git a/www/callbacks/coinbase.spt b/www/callbacks/coinbase.spt
index abbbdd8872..5e16c48ce8 100644
--- a/www/callbacks/coinbase.spt
+++ b/www/callbacks/coinbase.spt
@@ -40,7 +40,7 @@ if order:
         amount = int(order['total_payout']['cents']) * D('0.01')
         fee = int(order['total_native']['cents']) * D('0.01') - amount
 
-        record_exchange(website.db, route, -amount, fee, participant, 'succeeded')
+        record_exchange(website.db, route, amount, fee, participant, 'succeeded')
     # TODO - handle mispayments
 
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