diff --git a/doc/src/sgml/ref/pg_basebackup.sgml b/doc/src/sgml/ref/pg_basebackup.sgml
index 4150f2a4088..94367b06148 100644
--- a/doc/src/sgml/ref/pg_basebackup.sgml
+++ b/doc/src/sgml/ref/pg_basebackup.sgml
@@ -229,8 +229,8 @@ PostgreSQL documentation
the backup, this is only an approximation and may not end at exactly
100%. In particular, when WAL log is included in the
backup, the total amount of data cannot be estimated in advance, and
- in this case the progress report will only count towards the total
- amount of data without WAL.
+ in this case the estimated target size will increase once it passes the
+ total estimate without WAL.
When this is enabled, the backup will start by enumerating the size of