diff --git a/dl.php b/dl.php
index 60ae88c02..ec7aaad78 100644
--- a/dl.php
+++ b/dl.php
@@ -25,6 +25,8 @@ $thumbnail = request_var('thumb', 0);
 $is_m3u = false;
 if (str_starts_with($download_id, \TorrentPier\TorrServerAPI::M3U['prefix'])) {
     $is_m3u = true;
+} else {
+    $download_id = (int)$download_id;
 }
 
 // Send file to browser