diff --git a/phpstan.src.neon.dist b/phpstan.src.neon.dist
index e41d8a55fc34..f5d4e57505de 100644
--- a/phpstan.src.neon.dist
+++ b/phpstan.src.neon.dist
@@ -4,7 +4,6 @@ parameters:
   level: 0
   ignoreErrors:
     - "#\\(void\\) is used#"
-    - "#Access to undefined constant#"
     - "#Access to an undefined property#"
     - "#Call to an undefined method#"
     - "#but return statement is missing.#"
diff --git a/src/Illuminate/Redis/Connectors/PhpRedisConnector.php b/src/Illuminate/Redis/Connectors/PhpRedisConnector.php
index a39f925ba3fc..d15b15cd31d8 100644
--- a/src/Illuminate/Redis/Connectors/PhpRedisConnector.php
+++ b/src/Illuminate/Redis/Connectors/PhpRedisConnector.php
@@ -196,7 +196,7 @@ protected function createRedisClusterInstance(array $servers, array $options)
             }
 
             if (! empty($options['failover'])) {
-                $client->setOption(Redis::OPT_SLAVE_FAILOVER, $options['failover']);
+                $client->setOption(RedisCluster::OPT_SLAVE_FAILOVER, $options['failover']);
             }
 
             if (! empty($options['name'])) {