diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
new file mode 100644
index 5f47c1f..19f513e
*** a/doc/src/sgml/config.sgml
--- b/doc/src/sgml/config.sgml
*************** include 'filename'
*** 1968,1974 ****
          the first process that becomes ready to flush waits for the configured
          interval, while subsequent processes wait only until the leader
          completes the flush.  The default <varname>commit_delay</> is zero
!         (no delay).
         </para>
        </listitem>
       </varlistentry>
--- 1968,1974 ----
          the first process that becomes ready to flush waits for the configured
          interval, while subsequent processes wait only until the leader
          completes the flush.  The default <varname>commit_delay</> is zero
!         (no delay), and only honored if <varname>fsync</varname> is enabled.
         </para>
        </listitem>
       </varlistentry>