diff --git a/src/Wallabag/CoreBundle/Controller/WallabagRestController.php b/src/Wallabag/CoreBundle/Controller/WallabagRestController.php
index ab2c1181c..4784cb012 100644
--- a/src/Wallabag/CoreBundle/Controller/WallabagRestController.php
+++ b/src/Wallabag/CoreBundle/Controller/WallabagRestController.php
@@ -45,7 +45,7 @@ class WallabagRestController extends Controller
             ->getRepository('WallabagCoreBundle:Entry')
             ->findEntries(1, $isArchived, $isStarred, $isDeleted, $sort, $order);
 
-        if (is_null($entries)) {
+        if (!($entries)) {
             throw $this->createNotFoundException();
         }