diff --git a/js/directives.js b/js/directives.js
index 6859c5fa0..3cc79625d 100644
--- a/js/directives.js
+++ b/js/directives.js
@@ -17,6 +17,12 @@ angular.module('copayApp.directives')
             // Is this a payment protocol URI (BIP-72)?
             if (uri && uri.merchant) {
               scope.wallet.fetchPaymentTx(uri.merchant, function(err, merchantData) {
+                if ((err && err.message === 'No unspent outputs.')
+                    || scope.availableBalance < +merchantData.total) {
+                  ctrl.$setValidity('validAddress', false);
+                  return;
+                }
+
                 if (err) {
                   if (scope._resetPayPro) scope._resetPayPro();
                   ctrl.$setValidity('validAddress', false);
diff --git a/js/models/core/Wallet.js b/js/models/core/Wallet.js
index db8d63159..122192f0f 100644
--- a/js/models/core/Wallet.js
+++ b/js/models/core/Wallet.js
@@ -937,6 +937,9 @@ Wallet.prototype.receivePaymentRequest = function(options, pr, cb) {
 
   return this.getUnspent(function(err, unspent) {
     if (options.fetch) {
+      if (!unspent || !unspent.length) {
+        return cb(new Error('No unspent outputs.'));
+      }
       self.createPaymentTxSync(options, merchantData, unspent);
       return cb(null, merchantData, pr);
     }