diff --git a/src/js/controller.js b/src/js/controller.js
index 7a1325b..59a1768 100644
--- a/src/js/controller.js
+++ b/src/js/controller.js
@@ -22,7 +22,7 @@ angular.module('focaModalFlete')
                 };
                 
                 $scope.validar = function() {
-                    return $scope.formFlete.$pristine ||
+                    return !$scope.parametrosFlete.flete ||
                     (
                         $scope.parametrosFlete.flete === '1' &&
                         (