diff --git a/etc/sendmail/freebsd.mc b/etc/sendmail/freebsd.mc
index dbdfdb57ea62..97264805a67f 100644
--- a/etc/sendmail/freebsd.mc
+++ b/etc/sendmail/freebsd.mc
@@ -73,14 +73,14 @@ dnl NOTE: This can allow sites to use your server as a backup MX without
 dnl       your permission.
 dnl FEATURE(relay_based_on_MX)
 
-dnl DNS based black hole lists
-dnl --------------------------------
-dnl DNS based black hole lists come and go on a regular basis
-dnl so this file will not serve as a database of the available servers.
+dnl DNS based block lists
+dnl ---------------------
+dnl DNS based block lists come and go on a regular basis so this
+dnl file will not serve as a database of the available servers.
 dnl For more information, visit
 dnl http://en.wikipedia.org/wiki/DNSBL
 
-dnl Uncomment to activate your chosen DNS based blacklist
+dnl Uncomment to activate your chosen DNS based block list
 dnl FEATURE(dnsbl, `dnsbl.example.com')
 dnl Alternatively, you can provide your own server and rejection message:
 dnl FEATURE(dnsbl, `dnsbl.example.com', ``"550 Mail from " $&{client_addr} " rejected"'')