diff --git a/doc/src/sgml/maintenance.sgml b/doc/src/sgml/maintenance.sgml
index 70b99e87329..f3d1669f3a2 100644
--- a/doc/src/sgml/maintenance.sgml
+++ b/doc/src/sgml/maintenance.sgml
@@ -638,7 +638,7 @@ vacuum threshold = vacuum base threshold + vacuum scale factor * number of tuple
analyze threshold = analyze base threshold + analyze scale factor * number of tuples
- is compared to the total number of tuples inserted or updated
+ is compared to the total number of tuples inserted, updated, or deleted
since the last ANALYZE.