diff --git a/src/Message/Traits/Multimedia.php b/src/Message/Traits/Multimedia.php
index 1d3516bb..77356b39 100644
--- a/src/Message/Traits/Multimedia.php
+++ b/src/Message/Traits/Multimedia.php
@@ -62,7 +62,7 @@ protected static function getDownloadUrl($message)
     {
         $serverConfig = vbot('config')['server'];
 
-        return $serverConfig['uri']['base'].DIRECTORY_SEPARATOR.static::DOWNLOAD_API."{$message['MsgId']}&skey={$serverConfig['skey']}";
+        return $serverConfig['uri']['base'].'/'.static::DOWNLOAD_API."{$message['MsgId']}&skey={$serverConfig['skey']}";
     }
 
     protected static function getDownloadOption($message)