diff --git a/include/class.file.php b/include/class.file.php
index e8ea7db9a10b89cdee5f47f493009239fa3f95dd..a2a0e57cb1db28daaa2819f52c5b5de630e77b25 100644
--- a/include/class.file.php
+++ b/include/class.file.php
@@ -247,8 +247,6 @@ class AttachmentFile extends VerySimpleModel {
         $ttl = ($expires) ? $expires - Misc::gmtime() : false;
         $this->makeCacheable($ttl);
         $type = $this->getType() ?: 'application/octet-stream';
-        if (isset($_REQUEST['overridetype']))
-            $type = $_REQUEST['overridetype'];
         Http::download($this->getName(), $type, null, 'inline');
         header('Content-Length: '.$this->getSize());
         $this->sendData(false);