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-rw-r--r--lib/invoices.js3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/invoices.js b/lib/invoices.js
index 633072f3..de29e74b 100644
--- a/lib/invoices.js
+++ b/lib/invoices.js
@@ -40,7 +40,8 @@ export let generate = async ({ invoice, user, sender, }) => {
if (!rate) rate = store.rates[currency];
if (fiat) amount = Math.round((SATS * fiat) / rate);
if (amount < 0) fail("invalid amount");
- if (tip< 0) fail("invalid tip");
+ if (tip < 0) fail("invalid tip");
+ if (rate < 0) fail("invalid rate");
if (memo && memo.length > 200) fail("memo too long");
let id = v4();