diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 8af2891191..0c3193bfeb 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -8795,7 +8795,7 @@ COPY postgres_log FROM '/full/path/to/logfile.csv' WITH csv;
       </listitem>
      </varlistentry>
 
-     <varlistentry id="guc-multixact-failsafe-age" xreflabel="vacuum_multixact_failsafe_age">
+     <varlistentry id="guc-vacuum-multixact-failsafe-age" xreflabel="vacuum_multixact_failsafe_age">
       <term><varname>vacuum_multixact_failsafe_age</varname> (<type>integer</type>)
       <indexterm>
        <primary><varname>vacuum_multixact_failsafe_age</varname> configuration parameter</primary>
diff --git a/doc/src/sgml/release-14.sgml b/doc/src/sgml/release-14.sgml
index c33f77c290..51820eac1a 100644
--- a/doc/src/sgml/release-14.sgml
+++ b/doc/src/sgml/release-14.sgml
@@ -911,7 +911,7 @@ Author: Peter Geoghegan <pg@bowt.ie>
 
        <para>
         This is controlled by <xref linkend="guc-vacuum-failsafe-age"/>
-        and <xref linkend="guc-multixact-failsafe-age"/>.
+        and <xref linkend="guc-vacuum-multixact-failsafe-age"/>.
        </para>
       </listitem>