diff --git a/ChangeLog b/ChangeLog
index 95a69597b..e78bbe558 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
 20070809
  - (dtucker) [openbsd-compat/port-aix.c] Comment typo.
+ - (dtucker) [README.platform] Document the interaction between PermitRootLogin
+   and the AIX native login restrictions.
 
 20070808
  - (djm) OpenBSD CVS Sync
@@ -3138,4 +3140,4 @@
    OpenServer 6 and add osr5bigcrypt support so when someone migrates
    passwords between UnixWare and OpenServer they will still work. OK dtucker@
 
-$Id: ChangeLog,v 1.4719 2007/08/09 04:29:47 dtucker Exp $
+$Id: ChangeLog,v 1.4720 2007/08/09 04:31:53 dtucker Exp $
diff --git a/README.platform b/README.platform
index 7accea48e..3d7db1494 100644
--- a/README.platform
+++ b/README.platform
@@ -30,6 +30,12 @@ define the environment variable blibpath before running configure, eg
 blibpath=/lib:/usr/lib:/opt/freeware/lib ./configure \
   --with-ssl-dir=/opt/freeware --with-zlib=/opt/freeware
 
+If sshd is built with the WITH_AIXAUTHENTICATE option (which is enabled
+by default) then sshd checks that users are permitted via the
+loginrestrictions() function, in particular that the user has the
+"rlogin" attribute set.  This check is not done for the root account,
+instead the PermitRootLogin setting in sshd_config is used.
+
 
 Cygwin
 ------
@@ -75,4 +81,4 @@ account stacks which will prevent authentication entirely, but will still
 return the output from pam_nologin to the client.
 
 
-$Id: README.platform,v 1.8 2007/03/13 10:00:45 dtucker Exp $
+$Id: README.platform,v 1.9 2007/08/09 04:31:53 dtucker Exp $