diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 5ae6176528..0fa2f80b4a 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -23915,28 +23915,8 @@ SELECT currval(pg_get_serial_sequence('sometable', 'id'));
         Returns an array of the flags associated with the given GUC, or
         <literal>NULL</literal> if it does not exist. The result is
         an empty array if the GUC exists but there are no flags to show.
-        Only the most useful flags are exposed, as of the following:
-        <simplelist>
-         <member>
-          <literal>EXPLAIN</literal>: parameters included in
-          <command>EXPLAIN (SETTINGS)</command> commands.
-         </member>
-         <member>
-          <literal>NO_SHOW_ALL</literal>: parameters excluded from
-          <command>SHOW ALL</command> commands.
-         </member>
-         <member>
-          <literal>NO_RESET_ALL</literal>: parameters excluded from
-          <command>RESET ALL</command> commands.
-         </member>
-         <member>
-          <literal>NOT_IN_SAMPLE</literal>: parameters not included in
-          <filename>postgresql.conf</filename> by default.
-         </member>
-         <member>
-          <literal>RUNTIME_COMPUTED</literal>: runtime-computed parameters.
-         </member>
-        </simplelist>
+        Only the most useful flags listed in
+        <xref linkend="functions-pg-settings-flags"/> are exposed.
        </para></entry>
       </row>
 
@@ -24344,6 +24324,46 @@ SELECT collation for ('foo' COLLATE "de_DE");
    </tgroup>
   </table>
 
+  <table id="functions-pg-settings-flags">
+   <title>GUC Flags</title>
+   <tgroup cols="2">
+    <thead>
+     <row><entry>Flag</entry><entry>Description</entry></row>
+    </thead>
+    <tbody>
+     <row>
+      <entry><literal>EXPLAIN</literal></entry>
+      <entry>Parameters with this flag are included in
+       <command>EXPLAIN (SETTINGS)</command> commands.
+      </entry>
+     </row>
+     <row>
+      <entry><literal>NO_SHOW_ALL</literal></entry>
+      <entry>Parameters with this flag are excluded from
+       <command>SHOW ALL</command> commands.
+      </entry>
+     </row>
+     <row>
+      <entry><literal>NO_RESET_ALL</literal></entry>
+      <entry>Parameters with this flag are excluded from
+       <command>RESET ALL</command> commands.
+      </entry>
+     </row>
+     <row>
+      <entry><literal>NOT_IN_SAMPLE</literal></entry>
+      <entry>Parameters with this flag are not included in
+       <filename>postgresql.conf</filename> by default.
+      </entry>
+     </row>
+     <row>
+      <entry><literal>RUNTIME_COMPUTED</literal></entry>
+      <entry>Parameters with this flag are runtime-computed ones.
+      </entry>
+     </row>
+    </tbody>
+   </tgroup>
+  </table>
+
   <para>
    <xref linkend="functions-info-object-table"/> lists functions related to
    database object identification and addressing.