diff --git a/doc/src/sgml/client-auth.sgml b/doc/src/sgml/client-auth.sgml
new file mode 100644
index 575eb3b..e7c7db4
*** a/doc/src/sgml/client-auth.sgml
--- b/doc/src/sgml/client-auth.sgml
*************** omicron         bryanh                  
*** 989,996 ****
      <literal>negotiate</literal> mode, which will use
      <productname>Kerberos</productname> when possible and automatically
      fall back to <productname>NTLM</productname> in other cases.
!     <productname>SSPI</productname> authentication only works when both
!     server and client are running <productname>Windows</productname>.
     </para>
  
     <para>
--- 989,998 ----
      <literal>negotiate</literal> mode, which will use
      <productname>Kerberos</productname> when possible and automatically
      fall back to <productname>NTLM</productname> in other cases.
!     In addition to clients running on <productname>Windows</productname>,
!     <productname>SSPI</productname> authentication is also supported by
!     <application>libpq</application>-based clients on other platforms, 
!     through the use of <productname>GSSAPI</productname>.
     </para>
  
     <para>