diff --git a/lib/User.php b/lib/User.php
index 6b1c050..55e4475 100644
--- a/lib/User.php
+++ b/lib/User.php
@@ -210,7 +210,7 @@ class User extends DbMapping
     public function hasWish($noticeId)
     {
         foreach ($this->getWishes() as $book) {
-            if ($book->id == $noticeId) {
+            if ($book['id'] == $noticeId) {
                 return true;
             }
         }