diff --git a/doc/snac.8 b/doc/snac.8
index aac9f70..7e3213b 100644
--- a/doc/snac.8
+++ b/doc/snac.8
@@ -260,6 +260,8 @@ need at least a Linux kernel version 5.13.0.
 .It Ic max_public_entries
 The maximum number of entries (posts) to be returned in user RSS feeds and outboxes
 (default: 20).
+.It Ic max_attachments
+The maximum number of attachments per post (default: 4).
 .El
 .Pp
 You must restart the server to make effective these changes.