diff --git a/class/Paym.js b/class/Paym.js
index c43db6f..9255583 100644
--- a/class/Paym.js
+++ b/class/Paym.js
@@ -40,7 +40,7 @@ export class Paym {
       amt: this._decoded.num_satoshis,
       num_routes: 1,
       final_cltv_delta: 144,
-      fee_limit: { fixed: Math.floor(this._decoded.num_satoshis * 0.01) },
+      fee_limit: { fixed: Math.floor(this._decoded.num_satoshis * 0.01) + 1 },
     };
     let that = this;
     return new Promise(function(resolve, reject) {
@@ -86,7 +86,7 @@ export class Paym {
         if (this._bolt11) payment.pay_req = this._bolt11;
         // trying to guess the fee
         payment.payment_route = payment.payment_route || {};
-        payment.payment_route.total_fees = Math.floor(this._decoded.num_satoshis * 0.01);
+        payment.payment_route.total_fees = Math.floor(this._decoded.num_satoshis * 0.01); // we dont know the exact fee, so we use max (same as fee_limit)
         payment.payment_route.total_amt = this._decoded.num_satoshis;
       }
     }
diff --git a/controllers/api.js b/controllers/api.js
index 16f6bdb..cfc6078 100644
--- a/controllers/api.js
+++ b/controllers/api.js
@@ -209,7 +209,7 @@ router.post('/payinvoice', async function(req, res) {
       let inv = {
         payment_request: req.body.invoice,
         amt: info.num_satoshis, // amt is used only for 'tip' invoices
-        fee_limit: { fixed: Math.floor(info.num_satoshis * 0.005) },
+        fee_limit: { fixed: Math.floor(info.num_satoshis * 0.005) + 1 },
       };
       try {
         await u.lockFunds(req.body.invoice, info);
diff --git a/scripts/process-locked-payments.js b/scripts/process-locked-payments.js
index 757837a..ff1f87a 100644
--- a/scripts/process-locked-payments.js
+++ b/scripts/process-locked-payments.js
@@ -30,6 +30,7 @@ let lightning = require('../lightning');
           sendResult = await payment.attemptPayToRoute();
         } catch (_) {
           console.log(_);
+          console.log('evict lock');
           await user.unlockFunds(lockedPayment.pay_req);
           continue;
         }
@@ -38,7 +39,7 @@ let lightning = require('../lightning');
         if (payment.getIsPaid() === true) {
           console.log('paid successfully');
           sendResult = payment.processSendPaymentResponse(sendResult); // adds fees
-          console.log('sendResult=', sendResult);
+          console.log('saving paid invoice:', sendResult);
           await user.savePaidLndInvoice(sendResult);
           await user.unlockFunds(lockedPayment.pay_req);
         } else if (payment.getIsPaid() === false) {