diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 6f55a2b5c9..77d276edfe 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3169,7 +3169,8 @@ include_dir 'conf.d'
      In this mode, the parameters from both this section and <xref
      linkend="runtime-config-wal-recovery-target"/> will be used.  Parameters
      from <xref linkend="runtime-config-replication-standby"/> will not be
-     used.
+     used (<varname>hot_standby</varname> and
+     <varname>max_standby_archive_delay</varname>).
     </para>
 
     <variablelist>