--- sbin/ipfw/ipfw.8	2019-11-30 10:38:13.736214000 +0100
+++ sbin/ipfw/ipfw.8	2019-11-30 10:38:36.443180000 +0100
@@ -1763,7 +1763,7 @@ 
 specified in the same way as
 .Ar ports .
 .It Cm ipversion Ar ver
-Matches IP packets whose IP version field is
+Matches IPv4 packets whose IP version field is
 .Ar ver .
 .It Cm keep-state Op Ar :flowname
 Upon a match, the firewall will create a dynamic rule, whose