diff --git a/Import/Writer/Writer.php b/Import/Writer/Writer.php
index 9089106..9b130dc 100644
--- a/Import/Writer/Writer.php
+++ b/Import/Writer/Writer.php
@@ -113,7 +113,7 @@ private function save(RedirectRouteInterface $entity)
      */
     private function validate(RedirectRouteInterface $entity)
     {
-        if ('' === $entity->getTarget() && Response::HTTP_GONE !== $entity->getStatusCode()) {
+        if ('' === $entity->getTarget() && Response::HTTP_GONE !== (int)$entity->getStatusCode()) {
             throw new TargetIsEmptyException($entity);
         }