diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 058519d31cb..9de21244fe5 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -1829,9 +1829,8 @@ include_dir 'conf.d'
         fact in mind when choosing the value.  Sort operations are used
         for <literal>ORDER BY</literal>, <literal>DISTINCT</literal>,
         and merge joins.
-        Hash tables are used in hash joins, hash-based aggregation, result
-        cache nodes and hash-based processing of <literal>IN</literal>
-        subqueries.
+        Hash tables are used in hash joins, hash-based aggregation, memoize
+        nodes and hash-based processing of <literal>IN</literal> subqueries.
        </para>
        <para>
         Hash-based operations are generally more sensitive to memory