diff --git a/src/Http/Resource.php b/src/Http/Resource.php
index 36f4d45..56ef19d 100644
--- a/src/Http/Resource.php
+++ b/src/Http/Resource.php
@@ -32,7 +32,7 @@ public static function get($endpoint = null, $params = [], $single = true)
     // Alias for Create and Update methods
     public static function save(array $params)
     {
-        if (isset($params['Identificador'])) {
+        if (!isset($params['Identificador'])) {
             return static::create($params);
         }