diff --git a/app/Controllers/ProxyController.php b/app/Controllers/ProxyController.php
index bd27519..5f0a592 100644
--- a/app/Controllers/ProxyController.php
+++ b/app/Controllers/ProxyController.php
@@ -33,8 +33,7 @@ class ProxyController {
 
     }
 
-    static private function getFilename(string $url, string $user): string {
-        $id = Converter::urlToId($url);
+    static private function getFilename(string $id, string $user): string {
         $filename = 'tiktok-video-' . $id . '-' . $user;
         return $filename;
     }
@@ -52,12 +51,13 @@ class ProxyController {
         $downloader = new \TikScraper\Download($method);
 
         // Params
+        $id = $_GET['id'] ?? '';
         $watermark = isset($_GET['watermark']);
         $url = $_GET['url'];
         $user = $_GET['user'] ?? '';
         // Filename
-        $filename = self::getFilename($url, $user);
+        $filename = self::getFilename($id, $user);
         // Running
-        $downloader->url($_GET['url'], $filename, $watermark);
+        $downloader->url($url, $filename, $watermark);
     }
 }
diff --git a/app/Helpers/UrlBuilder.php b/app/Helpers/UrlBuilder.php
index 96d3d89..62bff30 100644
--- a/app/Helpers/UrlBuilder.php
+++ b/app/Helpers/UrlBuilder.php
@@ -6,9 +6,9 @@ class UrlBuilder {
         return Misc::url('/stream?url=' . urlencode($url));
     }
 
-    static public function download(string $url, string $username, bool $watermark): string {
+    static public function download(string $url, string $username, string $id, bool $watermark): string {
         // {path('/download?url=' . urlencode($playAddr) . '&id=' . $id . '&user=' . $uniqueId) . '&watermark=1'}
-        $down_url = Misc::url('/download?url=' . urlencode($url) . '&user=' . $username);
+        $down_url = Misc::url('/download?url=' . urlencode($url) . '&id=' . $id . '&user=' . $username);
         if ($watermark) $down_url .= '&watermark=1';
         return $down_url;
     }
diff --git a/app/Helpers/Wrappers.php b/app/Helpers/Wrappers.php
index 49ba9d5..1c8f10f 100644
--- a/app/Helpers/Wrappers.php
+++ b/app/Helpers/Wrappers.php
@@ -43,8 +43,8 @@ class Wrappers {
         $latte->addFunction('url_video_external', function (string $username, string $id): string {
             return UrlBuilder::video_external($username, $id);
         });
-        $latte->addFunction('url_download', function (string $url, string $username, bool $watermark): string {
-            return UrlBuilder::download($url, $username, $watermark);
+        $latte->addFunction('url_download', function (string $url, string $username, string $id, bool $watermark): string {
+            return UrlBuilder::download($url, $username, $id, $watermark);
         });
         // https://stackoverflow.com/a/36365553
         $latte->addFunction('number', function (float $x) {
diff --git a/components/themes/card.latte b/components/themes/card.latte
index 23265a6..ce5629c 100644
--- a/components/themes/card.latte
+++ b/components/themes/card.latte
@@ -6,8 +6,8 @@
 		{do $share_url = url_video_external($item->author->uniqueId, $item->id)}
     <div class="column is-one-quarter clickable-img" id="{$item->id}" onclick="openVideo(this.id)"
 			data-video_url="{url_stream($item->video->playAddr)}"
-			data-video_download_watermark="{url_download($item->video->playAddr, $item->author->uniqueId, true)}"
-			data-video_download_nowatermark="{url_download($item->video->playAddr, $item->author->uniqueId, false)}"
+			data-video_download_watermark="{url_download($item->video->playAddr, $item->author->uniqueId, $item->id, true)}"
+			data-video_download_nowatermark="{url_download(url_video_external($item->author->uniqueId, $item->id), $item->author->uniqueId, $item->id, false)}"
 			data-video_share_url="{$share_url}"
 			data-desc="{$item->desc}"
 			data-createtime="{$item->createTime}"
diff --git a/components/themes/common/download.latte b/components/themes/common/download.latte
index 493d19f..9886fda 100644
--- a/components/themes/common/download.latte
+++ b/components/themes/common/download.latte
@@ -6,8 +6,8 @@
 	</div>
 	<div class="dropdown-menu" role="menu">
 		<div class="dropdown-content">
-			<a target="_blank" href="{url_download($playAddr, $uniqueId, true)}" class="dropdown-item">Watermark</a>
-			<a target="_blank" href="{url_download(url_video_external($uniqueId, $id), $uniqueId, false)}" class="dropdown-item">No watermark</a>
+			<a target="_blank" href="{url_download($playAddr, $uniqueId, $id, true)}" class="dropdown-item">Watermark</a>
+			<a target="_blank" href="{url_download(url_video_external($uniqueId, $id), $uniqueId, $id, false)}" class="dropdown-item">No watermark</a>
 		</div>
 	</div>
 </div>