diff --git a/core/components/login/model/login/loginhooks.class.php b/core/components/login/model/login/loginhooks.class.php
index 074f4f96..4fa7e644 100644
--- a/core/components/login/model/login/loginhooks.class.php
+++ b/core/components/login/model/login/loginhooks.class.php
@@ -411,7 +411,9 @@ public function email(array $fields = array()) {
 
     public function _process($str,array $placeholders = array()) {
         foreach ($placeholders as $k => $v) {
-            $str = str_replace('[[+'.$k.']]',$v,$str);
+            if (!is_object($v)) {
+                $str = str_replace('[[+'.$k.']]',$v,$str);
+            }
         }
         return $str;
     }