diff --git a/js/directives.js b/js/directives.js
index 262cb719e..ac823cdb1 100644
--- a/js/directives.js
+++ b/js/directives.js
@@ -91,15 +91,14 @@ angular.module('copayApp.directives')
   ])
   .directive('validAmount', ['$rootScope', '$locale',
     function($rootScope, locale) {
-      var w = $rootScope.wallet;
-      preconditions.checkState(w);
-      preconditions.checkState(w.settings.unitToSatoshi);
       var formats = locale.NUMBER_FORMATS;
 
       return {
         require: 'ngModel',
         link: function(scope, element, attrs, ctrl) {
           var val = function(value) {
+            var w = $rootScope.wallet;
+            preconditions.checkState(w);
             var vNum = Number((value * w.settings.unitToSatoshi).toFixed(0));
 
             if (typeof value == 'undefined') {
diff --git a/views/send.html b/views/send.html
index 7cedcf8bb..5804b0027 100644
--- a/views/send.html
+++ b/views/send.html
@@ -88,7 +88,7 @@
                       <input type="number" id="amount"
                       ng-disabled="loading || ($root.merchant && +$root.merchant.total > 0) || isPayUri"
                       name="amount" placeholder="{{'Amount'|translate}}" ng-model="amount"
-                      min="0.00000001" max="10000000000" valid-amount required
+                      ng-minlength="0.00000001" ng-maxlength="10000000000" valid-amount required
                       autocomplete="off">
                       <i class="icon-bitcoin"></i>
                     </div>