diff --git a/doc/src/sgml/queries.sgml b/doc/src/sgml/queries.sgml
index c3ff8214a1..42859aec42 100644
--- a/doc/src/sgml/queries.sgml
+++ b/doc/src/sgml/queries.sgml
@@ -2133,7 +2133,7 @@ SELECT sum(n) FROM t;
 WITH RECURSIVE included_parts(sub_part, part, quantity) AS (
     SELECT sub_part, part, quantity FROM parts WHERE part = 'our_product'
   UNION ALL
-    SELECT p.sub_part, p.part, p.quantity
+    SELECT p.sub_part, p.part, p.quantity * pr.quantity
     FROM included_parts pr, parts p
     WHERE p.part = pr.sub_part
 )