diff --git a/src/Illuminate/Queue/Connectors/RedisConnector.php b/src/Illuminate/Queue/Connectors/RedisConnector.php
index ffac75170db6..697fbb6bae76 100644
--- a/src/Illuminate/Queue/Connectors/RedisConnector.php
+++ b/src/Illuminate/Queue/Connectors/RedisConnector.php
@@ -46,7 +46,7 @@ public function connect(array $config)
             $this->redis, $config['queue'],
             $config['connection'] ?? $this->connection,
             $config['retry_after'] ?? 60,
-            $config['block_for'] ?? 0
+            $config['block_for'] ?? null
         );
     }
 }