diff --git a/telnetd/telnetd.8 b/telnetd/telnetd.8
index 684f8a4..029b8e8 100644
--- a/telnetd/telnetd.8
+++ b/telnetd/telnetd.8
@@ -462,7 +462,8 @@ is willing to receive an 8 bit data stream.
 Requests that the client handle flow control
 characters remotely.
 .It "DO ECHO"
-This is not really supported, but is sent to identify a 4.2BSD
+This is not really supported, but is sent to identify a
+.Bx 4.2
 .Xr telnet 1
 client, which will improperly respond with
 .Dv WILL ECHO .
@@ -593,11 +594,13 @@ Some
 .Tn TELNET
 commands are only partially implemented.
 .Pp
-Because of bugs in the original 4.2 BSD
+Because of bugs in the original
+.Bx 4.2
 .Xr telnet 1 ,
 .Nm
 performs some dubious protocol exchanges to try to discover if the remote
-client is, in fact, a 4.2 BSD
+client is, in fact, a
+.Bx 4.2
 .Xr telnet 1 .
 .Pp
 Binary mode