diff --git a/src/Illuminate/Redis/Connectors/PhpRedisConnector.php b/src/Illuminate/Redis/Connectors/PhpRedisConnector.php
index d15b15cd31d8..2f248a6d66b3 100644
--- a/src/Illuminate/Redis/Connectors/PhpRedisConnector.php
+++ b/src/Illuminate/Redis/Connectors/PhpRedisConnector.php
@@ -63,9 +63,7 @@ public function connectToCluster(array $config, array $clusterOptions, array $op
      */
     protected function buildClusterConnectionString(array $server)
     {
-        return $this->formatHost($server).':'.$server['port'].'?'.Arr::query(Arr::only($server, [
-            'database', 'password', 'prefix', 'read_timeout',
-        ]));
+        return $this->formatHost($server).':'.$server['port'];
     }
 
     /**