diff --git a/tests/AwsS3Tests.php b/tests/AwsS3Tests.php
index 65d374037..da240ce1d 100644
--- a/tests/AwsS3Tests.php
+++ b/tests/AwsS3Tests.php
@@ -37,7 +37,7 @@ public function testRename()
         $result = $adapter->rename('old', 'new');
         $this->assertArrayHasKey('path', $result);
         $this->assertContains('new', $result);
-        $this->assertContains(1293836400, $result);
+        $this->assertInternalType('int', $result['timestamp']);
     }
 
     public function testDeleteDir()