diff --git a/README.md b/README.md
index e70382486..306085fcf 100644
--- a/README.md
+++ b/README.md
@@ -25,6 +25,8 @@ addon | version | summary
 [mail_inline_css](mail_inline_css/) | 13.0.1.0.2 | Convert style tags in inline style in your mails
 [mail_optional_autofollow](mail_optional_autofollow/) | 13.0.1.0.0 | Choose if you want to automatically add new recipients as followers on mail.compose.message
 [mail_outbound_static](mail_outbound_static/) | 13.0.1.0.1 | Allows you to configure the from header for a mail server.
+[mail_preview_audio](mail_preview_audio/) | 13.0.1.0.0 | Allow to preview audio files
+[mail_preview_base](mail_preview_base/) | 13.0.1.0.0 | Base to add more previewing options
 [mail_restrict_follower_selection](mail_restrict_follower_selection/) | 13.0.1.0.2 | Define a domain from which followers can be selected
 [mail_tracking](mail_tracking/) | 13.0.1.0.4 | Email tracking system for all mails sent
 [mail_tracking_mailgun](mail_tracking_mailgun/) | 13.0.1.0.0 | Mail tracking and Mailgun webhooks integration