diff --git a/doc/src/sgml/wal.sgml b/doc/src/sgml/wal.sgml
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index 1d1924b..0afb9d6
*** a/doc/src/sgml/wal.sgml
--- b/doc/src/sgml/wal.sgml
***************
*** 73,79 ****
        <para>
          On <productname>Linux</>, IDE drives can be queried using
          <command>hdparm -I</command>; write caching is enabled if there is
!         a <literal>*</> next to <literal>Write cache</>.  <command>hdparm -W</>
          can be used to turn off write caching.  SCSI drives can be queried
          using <ulink url="http://sg.danny.cz/sg/sdparm.html"><application>sdparm</></ulink>.
          Use <command>sdparm --get=WCE</command> to check
--- 73,79 ----
        <para>
          On <productname>Linux</>, IDE drives can be queried using
          <command>hdparm -I</command>; write caching is enabled if there is
!         a <literal>*</> next to <literal>Write cache</>.  <command>hdparm -W 0</>
          can be used to turn off write caching.  SCSI drives can be queried
          using <ulink url="http://sg.danny.cz/sg/sdparm.html"><application>sdparm</></ulink>.
          Use <command>sdparm --get=WCE</command> to check