diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 136b51bf12..ba2f1eabcf 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -1377,6 +1377,11 @@ include_dir 'conf.d'
The default is TLSv1.2, which satisfies industry
best practices as of this writing.
+
+
+ This parameter can only be set in the postgresql.conf
+ file or on the server command line.
+
@@ -1395,6 +1400,11 @@ include_dir 'conf.d'
useful for testing or if some component has issues working with a
newer protocol.
+
+
+ This parameter can only be set in the postgresql.conf
+ file or on the server command line.
+
@@ -1777,6 +1787,9 @@ include_dir 'conf.d'
the value of should
be used instead. The setting has no effect on the behavior of
VACUUM when run in other contexts.
+ This parameter can only be set in the
+ postgresql.conf file or on the server command
+ line.
@@ -4611,7 +4624,8 @@ ANY num_sync ( num_sync (