diff --git a/src/Illuminate/Queue/SerializesAndRestoresModelIdentifiers.php b/src/Illuminate/Queue/SerializesAndRestoresModelIdentifiers.php
index 1ee0d33b4536..4b9476e4c04b 100644
--- a/src/Illuminate/Queue/SerializesAndRestoresModelIdentifiers.php
+++ b/src/Illuminate/Queue/SerializesAndRestoresModelIdentifiers.php
@@ -82,7 +82,7 @@ public function restoreModel($value)
     {
         return $this->getQueryForModelRestoration(
             (new $value->class)->setConnection($value->connection), $value->id
-        )->useWritePdo()->firstOrFail()->load($value->relations);
+        )->useWritePdo()->firstOrFail()->load($value->relations ?? []);
     }
 
     /**