diff --git a/src/Repositories/RedisMetricsRepository.php b/src/Repositories/RedisMetricsRepository.php
index ba0c635e..00fdd7bf 100644
--- a/src/Repositories/RedisMetricsRepository.php
+++ b/src/Repositories/RedisMetricsRepository.php
@@ -390,7 +390,7 @@ public function clear()
 
             do {
                 [$cursor, $keys] = $this->connection()->scan(
-                    $cursor, ['match' => config('horizon.prefix').$pattern]
+                    $cursor ?? 0, ['match' => config('horizon.prefix').$pattern]
                 );
 
                 foreach ($keys ?? [] as $key) {