diff --git a/db/dcrpg/queries.go b/db/dcrpg/queries.go
index f85afbd0b..4823239a1 100644
--- a/db/dcrpg/queries.go
+++ b/db/dcrpg/queries.go
@@ -4027,7 +4027,7 @@ func parseRowsSentReceived(rows *sql.Rows) (*dbtypes.ChartsData, error) {
 		// given block. If the difference is positive then the value is unspent amount
 		// otherwise if the value is zero then all amount is spent and if the net amount
 		// is negative then for the given block more amount was sent than received.
-		items.Net = append(items.Net, toCoin(received-sent))
+		items.Net = append(items.Net, toCoin(int64(received)-int64(sent)))
 	}
 	if err := rows.Err(); err != nil {
 		return nil, err