diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 354f73643a7..aa1b02906e3 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -1,5 +1,5 @@
@@ -2554,13 +2554,13 @@ PostgreSQL documentation
-
- date '2001-09-28' + interval '1 hour'
+ date '2001-09-28' - interval '1 hour'
timestamp '2001-09-27 23:00'
-
- time '05:00' + interval '2 hours'
+ time '05:00' - interval '2 hours'
time '03:00'