diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 111000086d..52bd7293ca 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -1,5 +1,5 @@
@@ -4877,19 +4877,20 @@ substring('foobar' from 'o(.)b') o
- age(timestamp)
+ age(timestamp, timestamp)
interval
- Subtract from today
- age(timestamp '1957-06-13')
- 43 years 8 mons 3 days
+ Subtract arguments, producing a symbolic> result that
+ uses years and months
+ age(timestamp '2001-04-10', timestamp '1957-06-13')
+ 43 years 9 mons 27 days
- age(timestamp, timestamp)
+ age(timestamp)
interval
- Subtract arguments
- age('2001-04-10', timestamp '1957-06-13')
- 43 years 9 mons 27 days
+ Subtract from current_date
+ age(timestamp '1957-06-13')
+ 43 years 8 mons 3 days