diff --git a/com_oauthserver/administrator/src/Model/ClientModel.php b/com_oauthserver/administrator/src/Model/ClientModel.php
index 5de527d..03e91e0 100644
--- a/com_oauthserver/administrator/src/Model/ClientModel.php
+++ b/com_oauthserver/administrator/src/Model/ClientModel.php
@@ -103,7 +103,7 @@ class ClientModel extends AdminModel
     {
         $app = Factory::getApplication();
 
-        if ($table->id > 0)
+        if (empty($table->id))
         {
             $table->identifier = $this->generateNewIdentifier();
         }