diff --git a/doc/src/sgml/plpgsql.sgml b/doc/src/sgml/plpgsql.sgml
index a2482de2b9..d9b4e615e0 100644
--- a/doc/src/sgml/plpgsql.sgml
+++ b/doc/src/sgml/plpgsql.sgml
@@ -940,7 +940,7 @@ PERFORM query;
result. Write the query the same
way you would write an SQL SELECT> command, but replace the
initial keyword SELECT> with PERFORM.
- For WITH> queries, use PERFORM> and then
+ For WITH> queries, use PERFORM> and then
place the query in parentheses. (In this case, the query can only
return one row.)
PL/pgSQL variables will be