diff --git a/htdocs/core/lib/files.lib.php b/htdocs/core/lib/files.lib.php
index 8f56af5a10e..faa4d7f1640 100644
--- a/htdocs/core/lib/files.lib.php
+++ b/htdocs/core/lib/files.lib.php
@@ -1755,7 +1755,7 @@ function dol_check_secure_access_document($modulepart,$original_file,$entity,$fu
 	{
 		$accessallowed=1;
 		$dir='files';
-		if ($type == 'application/x-bittorrent') $dir='torrents';
+		if (dol_mimetype($original_file) == 'application/x-bittorrent') $dir='torrents';
 		$original_file=$conf->bittorrent->dir_output.'/'.$dir.'/'.$original_file;
 	}