diff --git a/packages/create-invoice-form/src/lib/utils/prepareRequest.ts b/packages/create-invoice-form/src/lib/utils/prepareRequest.ts
index 202b94b3..879bcdb3 100644
--- a/packages/create-invoice-form/src/lib/utils/prepareRequest.ts
+++ b/packages/create-invoice-form/src/lib/utils/prepareRequest.ts
@@ -29,7 +29,7 @@ export const prepareRequestParams = ({
         network: currency.network,
       },
       expectedAmount: parseUnits(
-        invoiceTotals.totalAmount.toFixed(2),
+        invoiceTotals.totalAmount.toString(),
         currency.decimals
       ).toString(),
       payee: {