diff --git a/app/MetaGer.php b/app/MetaGer.php
index 0ceed0a619ca9edd3aa42836e6a436fa3f735d05..0d526811506a99a65300bf547663cd7b734d7d50 100644
--- a/app/MetaGer.php
+++ b/app/MetaGer.php
@@ -950,10 +950,11 @@ class MetaGer
                 break;
             }
             $answer = Redis::brpop($enginesToWaitFor, 2);
-            Redis::lpush($answer[0], $answer[1]);
             
             if ($answer === null) {
                 continue;
+            } else {
+                Redis::lpush($answer[0], $answer[1]);
             }
             foreach ($engines as $index => $engine) {
                 if ($engine->hash === $answer[0]) {