diff --git a/doc/snac.8 b/doc/snac.8
index 79d8be9..caea1a1 100644
--- a/doc/snac.8
+++ b/doc/snac.8
@@ -230,6 +230,8 @@ unless you know what you are doing.
 .It Ic hide_delete_post_button
 If set to true, the button to delete a post is not shown. It's not very
 useful and somewhat clutters the already crowded button space.
+.It Ic disable_block_notifications
+If set to true, notifications about 'Block' activities are never sent.
 .El
 .Pp
 You must restart the server to make effective these changes.