diff --git a/src/Client.php b/src/Client.php
index 31d36c3..5453555 100755
--- a/src/Client.php
+++ b/src/Client.php
@@ -305,6 +305,10 @@ public function listFiles(array $options)
 
         $nextFileName = null;
         $maxFileCount = 1000;
+
+        $prefix = isset($options['Prefix']) ? $options['Prefix'] : '';
+        $delimiter = isset($options['Delimiter']) ? $options['Delimiter'] : null;
+
         $files = [];
 
         if (!isset($options['BucketId']) && isset($options['BucketName'])) {
@@ -328,6 +332,8 @@ public function listFiles(array $options)
                     'bucketId'      => $options['BucketId'],
                     'startFileName' => $nextFileName,
                     'maxFileCount'  => $maxFileCount,
+                    'prefix'        => $prefix,
+                    'delimiter'     => $delimiter,
                 ],
             ]);