diff --git a/src/js/controllers/amount.js b/src/js/controllers/amount.js
index 8b79bd815..e64f31d9c 100644
--- a/src/js/controllers/amount.js
+++ b/src/js/controllers/amount.js
@@ -133,6 +133,8 @@ angular.module('copayApp.controllers').controller('amountController', function($
 
   $scope.resetAmount = function() {
     $scope.amount = $scope.alternativeResult = $scope.amountResult = $scope.globalResult = '';
+    $scope.allowSend = false;
+
     checkFontSize();
   };
 
@@ -144,7 +146,7 @@ angular.module('copayApp.controllers').controller('amountController', function($
 
     var formatedValue = format(val);
     var result = evaluate(formatedValue);
-
+    $scope.allowSend = lodash.isNumber(result) && +result > 0;
     if (lodash.isNumber(result)) {
       $scope.globalResult = isExpression(val) ? '= ' + processResult(result) : '';
       $scope.amountResult = $filter('formatFiatAmount')(toFiat(result));
diff --git a/www/views/amount.html b/www/views/amount.html
index f7ac13a7e..bafed47af 100644
--- a/www/views/amount.html
+++ b/www/views/amount.html
@@ -52,7 +52,7 @@
     <div class="keypad">
       <div class="row">
         <div class="col col-25 col-offset-75 operator-send"
-             ng-show="amount > 0 || alternativeResult > 0 || amountResult > 0" ng-click="finish()">
+             ng-show="allowSend" ng-click="finish()">
           <i class="icon ion-ios-arrow-thin-right"></i>
         </div>
       </div>