diff --git a/doc/src/sgml/ref/vacuum.sgml b/doc/src/sgml/ref/vacuum.sgml
index 543ebcf..1f836a4 100644
--- a/doc/src/sgml/ref/vacuum.sgml
+++ b/doc/src/sgml/ref/vacuum.sgml
@@ -271,7 +271,7 @@ CPU: user: 0.09 s, system: 0.01 s, elapsed: 0.59 s.
 INFO:  "onek": removed 3000 tuples in 108 pages
 DETAIL:  CPU: user: 0.06 s, system: 0.01 s, elapsed: 0.07 s.
 INFO:  "onek": found 3000 removable, 1000 nonremovable tuples in 143 pages
-DETAIL:  0 dead tuples cannot be removed yet.
+DETAIL:  0 dead tuples cannot be removed yet, oldest xmin: 556
 There were 0 unused item pointers.
 Skipped 0 pages due to buffer pins.
 0 pages are entirely empty.