diff --git a/include/attach.php b/include/attach.php
index f5d2c69b6..a959a5bcb 100644
--- a/include/attach.php
+++ b/include/attach.php
@@ -64,7 +64,10 @@ function z_mime_content_type($filename) {
 	'wav' => 'audio/wav',
 	'qt' => 'video/quicktime',
 	'mov' => 'video/quicktime',
-	'ogg' => 'application/ogg',
+	'ogg' => 'audio/ogg',
+	'ogv' => 'video/ogg',
+	'ogx' => 'application/ogg',
+	'flac' => 'audio/flac',
 	'opus' => 'audio/ogg',
 	'webm' => 'video/webm',
 //	'webm' => 'audio/webm',