diff --git a/src/Command/RedisList.php b/src/Command/RedisList.php
index 5488dd8..5f7ddb0 100644
--- a/src/Command/RedisList.php
+++ b/src/Command/RedisList.php
@@ -21,8 +21,10 @@ public function __construct(
 
     /**
      * @link https://redis.io/commands/lindex
+     *
+     * TODO: Change type declaration to int only in next major.
      */
-    public function get(string $index): string
+    public function get(string|int $index): ?string
     {
         return $this->client->execute('lindex', $this->key, $index);
     }
diff --git a/test/Command/RedisListTest.php b/test/Command/RedisListTest.php
index 72d8238..e92f47e 100644
--- a/test/Command/RedisListTest.php
+++ b/test/Command/RedisListTest.php
@@ -51,6 +51,7 @@ public function test(): void
         $this->assertSame('y', $list->popHeadBlocking());
         $this->assertSame('b', $list->popTailBlocking());
 
+        $this->assertNull($this->redis->getList('nonexistent')->get(0));
         $this->assertNull($this->redis->getList('nonexistent')->popHeadBlocking(1));
         $this->assertNull($this->redis->getList('nonexistent')->popTailBlocking(1));
         $this->assertNull($this->redis->getList('nonexistent')->popTailPushHeadBlocking('nonexistent', 1));