diff --git a/cashu.ts b/cashu.ts
index 4717e81..eab8921 100644
--- a/cashu.ts
+++ b/cashu.ts
@@ -66,6 +66,7 @@ export default class PortalBtcWalletCashu {
   }
 
   async meltProofsToPayInvoice(invoice: string) {
+    await this.cashuWallet.loadMint();
     const meltQuote = await this.cashuWallet.createMeltQuote(invoice);
     const amountToMelt = meltQuote.amount + meltQuote.fee_reserve;
     const { keep, send } = await this.cashuWallet.send(