diff --git a/src/Controller/APIController.php b/src/Controller/APIController.php
index 86830b7f..e0de5ad2 100644
--- a/src/Controller/APIController.php
+++ b/src/Controller/APIController.php
@@ -233,6 +233,7 @@ class APIController extends Controller
             ->andWhere('s.customer is not null')
             ->andWhere('s.confirm_flag = 1')
             ->setParameter('number', $number)
+            ->setMaxResults(1)
             ->getQuery();
 
         // we just need one