diff --git a/utils/adddoc.php b/utils/adddoc.php
index d88df7a01..1b6df25d9 100644
--- a/utils/adddoc.php
+++ b/utils/adddoc.php
@@ -145,7 +145,7 @@ $user = $dms->getUser(1);
 
 if(is_readable($filename)) {
 	if(filesize($filename)) {
-		$finfo = new finfo(FILEINFO_MIME);
+		$finfo = new finfo(FILEINFO_MIME_TYPE);
 		if(!$mimetype) {
 			$mimetype = $finfo->file($filename);
 		}