diff --git a/app/Crawler/Crawler.php b/app/Crawler/Crawler.php
index 3ab74ca..f851973 100644
--- a/app/Crawler/Crawler.php
+++ b/app/Crawler/Crawler.php
@@ -175,7 +175,7 @@ protected function searchIsDeletedOrFinished()
     protected function getNextNotCrawledUrl()
     {
         return $this->search->urls()
-            ->where(['crawled' => false])
+            ->where('crawled', '0')
             ->first();
     }